The male offspring, however, will all be white-eyed (X^r Y) since they can only receive the X^r chromosome from their mother. white-eyed, female _____ red-eyed, male _____ red-eyed, female _____ Genotype. So far, we believe we are observing a sex-linked recessive type of inheritance in our white-eyed mutation. The allele for red eyes is dominant over its recessive allele, white eyes. The females were all red eyed whereas 50% males were white eyed and the remaining 50% males were red eyed (Fig. This results from non-separation of two homologous X chromosomes during anaphase I of meiosis. When Bridges Crossed White-eyed Females With Red-eyed Males, He Obtained A Few Red-eyed Males And White-eyed Females (see Figure 4.13). d. What fraction of the female children will carry the white eyed trait? 25%. white eyed, male white eyed, female X red eyed female (het rozygous) red 3 4 Show the cr ss of a white eyed female X r X with a red-eyed male X Y Show a cross between a pure red eyed female and a white eyed male. What are the expected phenotypes of the offspring? Analyze the above observation and compare with the Mendelian dihybrid cross. All of the females will have red eyes; half of the males Thus a red eyed heterozygous female (XR Xr) will produce two types of gametes XR and Xr while the white eyed male (Xr Y) will produce two gametes ie Xr and Y. the F2: 2459 red-eyed females, In a cross between a white-eyed female (ww) and a red-eyed male (w+Y), nearly all the progeny were either red-eyed females (w+w) or white-eyed males (wY). Feb 01,2021 - A cross between white eyed female and red eyed male Drosophila gives rise red eyed females and white eyed male. In humans, emophi a isa e will they won't ever be carriers) xHxH = female, Now, consider a cross between a homozygous white-eyed female and a male with red eyes (Figure 2). white eyed, male I white eyed, female red eyed, male _l_ red eyed, female So Math: What if in the above cross, 100 males were produced and 200 females. In a cross between a white-eyed female and a red-eyed male: All males will have red eyes; 50% of males will have white eyes; All females will have red eyes; 50% of females will have white eyes; In human diseases that are X-linked dominant, one dominant allele causes the disease. Buy Find arrow_forward. There was following progeny in. The symbol #W^+# is the dominant allele for red eyes, and the symbol #W# represents the recessive allele for white eyes. Thus red eye is a dominant trait. It is our belief that we had likely contamination by a white-eyed female which gave us the two different male phenotypes. Show the cross of a white eyed female X r X r with a red-eyed male X R Y. As stated above, white-eyed Drosophila females crossed to red-eyed males usually produce red-eyed female and white-eyed male progeny. b. In a cross between a homozygous red-eyed female fruit fly and a white-eyed male fruit fly, what is the expected outcome? This results from non-seperation of two homologous X chromosomes during anaphase I of meiosis. Draw arrows den... A: The metabolism of the human body produces several unwanted or waste products. Feb 01,2021 - A cross between white eyed female and red eyed male Drosophila gives rise red eyed females and white eyed male. These groups co... Q: Draw out a pedigree with 3+ generations that accurately mimics the inheritance patterns for one of t... A: A pedigree chart is usually drawn to show the occurrences of a particular gene’s phenotype in an ind... Q: The thoracic cavity is what to the abdominopelcic cavity? Now, consider a cross between a homozygous white-eyed female and a male with red eyes (Figure 2). Cross 2: Morgan then allowed males and females of F 1 generation to mate and produce F2 generation. Identify the functions of each part. What are the genotypes of the parents: and How many are: white eyed, male white eyed, female red eyed, male red eyed, female E. Show the cross of a red-eyed female (heterozygous) and a red-eved male 10 Show a cross between a pure red-eyed female and a white-eyed male. X x X xX RX R.- 1 1X`B . 300+ VIEWS. 1) red-eyed females and white-eyed males 2) white-eyed females and red-eyed males 3) all red-eyed females and a 50:50 mixture of white-eyed and red-eyed males 4) all red-eyed males and a 50:50 mixture of white-eyed and red-eyed females 5) The result cannot be predicted because it depends on whether the female is homozygous or heterozygous The gene for eye color (R) is found on the X chromosome (X^R). In a cross between a homozygous red-eyed female fruit fly and a white-eyed male fruit fly, what is the expected outcome? If a reciprocal cross is performed between white eyed female and red eyed male individual, all female individuals in F t generation are red eyed and all male individuals, are white eyed. will have red eyes, and half of the males will have white eyes. Further, when this F 1 red-eyed male and female flies were allowed to interbreed, in F 2 generation both the traits of red-eyed and white-eyed appeared in the ratio 3:1. a) If a white-eyed female is mated with a red-eyed male, what is the appearance of their offspring? 5.21). In a cross between a white-eyed female (ww) and a red-eyed male (w+Y), nearly all the progeny were either red-eyed females (w+w) or white-eyed males (wY). E. 0% The F 1 generation would exhibit only heterozygous red-eyed females (X W X w) and only white-eyed males (X w Y). If thisgene were on a … How many are: white eyed, male ____ white eyed, female ____ red eyed, male ____ red eyed, female ____ 4. Show the cross of a white eyed female X r X r with a red-eyed male X R Y . If an affected father has a child with an unaffected mother: Among thousands of such “regular” offspring, there are occasionally found exceptional white-eyed females and red-eyed males. Using the same information as for question #1, cross a heterozygous red-eyed female with a red-eyed male. All of the females will have red eyes; half of the males will have red eyes, and half of the males will have white eyes. Rarely the cross gives rise to white eyed females and red eyed males. I Red eyes are dominant over white eyes. Rarely this cross may give all white eyed females and red eyed males. A red-eyed male has an X^R Y genotype. 6. The F1 flies individual (both male and female) were all red-eyed, indicating that white eye color is recessive to the normal red eye color. The cross produced 1.3 percent recombinants and 98.7 progeny with parental type combinations in the F2 generation. is a dominant X-Iinked gene In mice. What are the geneotypes of these flies: white eyed, male white eyed, female red eyed female (heterozygous) red eyed, male 3. How many are: white eyed, male ____ white eyed, female ____ red eyed, male ____ red eyed, female ____ 4. All of the females and all of the males will have red eyes. The R allele codes for red eye colour and r allele codes for white eye colour. How many of the offspring are: The observable traits expressed by an organism are referred to as its phenotype. 4. This is due toa)Loss of one X-chromosomeb)Segregation of X- chromosome in femalec)Non disjunction of X- chromosome in femaled)Non disjunction of X- … A) In the monohybrid cross of a red eyed female (heterozygous) Drosophila and a red eyed male Drosophila, how many of the offspring are: - white eyed male - white eyed female Show the cross of a white – eyed female* * * * * with a red- eyed male* * * *.D . All contents copyright © 1996-99-03. Red eyes are dominant, and X-linked. However, cross a homozygous white eyed female with a red eyed male, and the unexpected results show all the males have white eyes and all the females red eyes. white-eyed, female _____ red-eyed, male _____ red-eyed, female _____ Genotype. Explain with the help of an - 17841398 This white-eyed male was crossed with a red-eyed female individual. a. all white-eyed male offspring b. all white-eyed female offspring c. all red-eyed offspring d. half white-eyed make offspring. It is because of the fact that red-eyed color is dominant over white color. When true-breeding plants in which one parent had yellow po… 1. However, about 1 in every 2000 F1 flies had an "exceptional phenotype" and was either a white-eyed female or red-eyed male. The females were all red eyed whereas 50% males were white eyed and the remaining 50% males were red eyed (Fig. (White eyes are X-linked, recessive) A. On the other hand if a homozygous white eyed female (ww) is crossed with red eyed male (W) [Fig. a. Red eyes are dominant, and X -linked. When yellow bodied, white-eyed Drosophila females were hybridised with brown-bodied, red-eyed males; and F 1 progeny was intercrossed, F 2 ratio deviated from 9 :3 : 3 : 1. 1. If a female and male offspring from the cross shown above are allowed to mate, what would the offspring probably look like? c. What fraction of the children will have white eyes? Females can be normal, carriers, or have the disease. In humans, hemophilia is a sex linked trait. 100% of the F1 generation having red-eyes is consistent with what would be predicted based on Mendelian inheritance of a recessive allele. On the other hand if a homozygous white eyed female (ww) is crossed with red eyed male (W) [Fig. Bridges constructed the following working hypothesis. A) Crossing over B) Incomplete cytokinesis C) Incorrect synapsis D) Nondisjunction E) Pseudoautosomal region. In F2 generation, 50% females will be red – eyed & 50% will be white eyed, similarly, in males 50% will be … Now, consider a cross between a homozygous white-eyed female and a male with red eyes. 5.43 (b)] in F 1 generation only the females are red eyed (Ww) having received a (W) carrying X chromosome from the male parent and a (w) carrying X chromosome from female parent. What fraction of the children will have red eyes? If an affected father has a child with an unaffected mother: All of the females will have white eyes; half of the males will have red eyes, and half of the males will have white eyes. Cross a homozygous white eyed male with a homozygous red eyed female, and all the offspring have red eyes. (think about the percentage of the total #) bei 6. 33 The role of 27. b. What are the expected phenotypes of the offspring? Show a cross between a pure red eyed female and a white eyed male. Red eyed females of F 1 generation were crossed with white eyed males. The cross of white eyed female with red eyed male gives red eyed females and white eyed males. 300+ SHARES. Reciprocal cross- red eyed male (Xw+ Y) and white eyed female (Xw Xw) A surprising result was obtained when the reciprocal cross was performed by mating white eyed females to red eyed males. In a cross between a white-eyed female (ww) and a red-eyed male (w+Y), nearly all the progeny were either red-eyed females (w+w) or white-eyed males (wY). In a dihybrid cross, white eyed, yellow bodied female Drosophila was crossed with red eyed, brown bodied male Drosophila. In a cross between a white-eyed female and a red-eyed male? Explanation Sex inherited by modified Mendelian mechanism Females are XX (homogametic) Males are XY (heterogametic) Eye color Eye color inherited by single gene, … have white eyes. Here, an ‘... Q: Part H - Putting the Events of the Action Potential into the Correct Sequential Order Half of the F 2 females would be red-eyed (X W X w) and half would be white-eyed (X w X w). Males will either have the disease or not (but they won’t ever be carriers) = female, normal = female, carrier = female, hemophiliac = male, normal = male, hemophiliac a. Morgan, when experimenting, reported the sudden appearance of one white-eyed male (mutant form) in the culture of normal red-eyed Drosophila. Thus red eye is a dominant trait. white, abbreviated w, was the first sex-linked mutation discovered, found in the fruit fly Drosophila melanogaster.In 1910 Thomas Hunt Morgan and Lilian Vaughan Morgan collected a single male white-eyed mutant from a population of Drosophila melanogaster fruit flies, which usually have dark brick red compound eyes.Upon crossing this male with wild-type female flies, they found … How many are: white eyed, male ____ white eyed, female ____ red eyed, male ____ red eyed, female ____ 4. This results from non-separation of two homologous X chromosomes during anaphase I of meiosis. It is similar to test cross where hybrids are cross bred with recessive parents. In a cross between a white-eyed female and a red-eyed male: All males will have red eyes; 50% of males will have white eyes; All females will have red eyes; 50% of females will have white eyes; In human diseases that are X-linked dominant, one dominant allele causes the disease. An F 1 female fly was then test crossed with white eyed and miniature winged male. Mendel’s hybridization experiments demonstrate the difference between phenotype and genotype. 2. Rarely, this cross may give all white-eyed Females and red-eyed males, this was found to be due to 000+ LIKES.  ... A: The nucleotide sequences found within a DNA molecule are subject to change due to a phenomenon known... Q: these questions are part of the same main question  The F 1 generation would exhibit only heterozygous red-eyed females (X W X w) and only white-eyed males (X w Y). 5.21). Show a cross between a pure red eyed female and a white eyed male. 22—5 300 ace eyes • 7. An organism’s underlying genetic makeup, consisting of both physically visible and non-expressed alleles, is called its genotype. What would be the result of a cross between a white-eyed male and a homozygous red-eyed female? Thus a red eyed heterozygous female (XR Xr) will produce two types of gametes XR and Xr while the white eyed male (Xr Y) will produce two gametes ie Xr and Y. This is due toa)Loss of one X-chromosomeb)Segregation of X- chromosome in femalec)Non disjunction of X- chromosome in femaled)Non disjunction of X- …   5.43 (b)] in F 1 generation only the females are red eyed (Ww) having received a (W) carrying X chromosome from the male parent and a (w) carrying X chromosome from female parent. Now, consider a cross between a homozygous white-eyed female and a male with red eyes. Peritoneum, Mesentery, Duodenum, Jejunum, Illium, Villi, ... A: The gastrointestinal system or digestive system is an organ system of humans and mammals which invol... Q: *Draw out a nephron, labeling all of its parts. Cross 1: Morgan mated this white eyed male with a wild type red eyed female.All 1237 offspring of this cross had red eyes. Only females can be homozygous or heterozygous for red eye color. Find answers to questions asked by student like you, In a cross between a white-eyed female (ww) and a red-eyed male (w+Y), nearly all the progeny were either red-eyed females (w+w) or white-eyed males (wY). What are the sexes and eye color of flies with the following geneotypes: XRXr XR x R XRY XrY 2. Median response time is 34 minutes and may be longer for new subjects. This statement is: 100%. 3. What are the genotypes of the parents. e) What is the genotype of the white-eyed male offspring? In fruit flies, the gene for eye color is carried on the X chromosome. In a dihybrid cross, white eyed, yellow bodied female Drosophila was crossed with red eyed, brown bodied male Drosophila. Show the cross of a white eyed female X r X r with a red-eyed male X R Y. When a red eyed is crossed with white eyed female fruitfly, offspring will have both white eyed male & red eyed female in 1:1 ration in F1 generation. A genotype consists of the genes in an organism. Concepts of … Two alleles for a given gene in a diploid organism are expressed and interact to produce physical characteristics. Show a cross between a pure red- eyed female and a white – eyed male .E . Problem 1: Crossing a white-eyed female and red-eyed male fly In a cross between a white-eyed female fruit fly and red-eyed male, what percent of the female offspring will have white eyes? A: Functional groups are groups of atoms that are present within the organic molecules. 2. The F 1 generation would exhibit only heterozygous red-eyed females (X W X w) and only white-eyed males (X w Y). There was following progeny in. All of the females and all of the males will have white eyes. Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes! Rarely the cross gives rise to white eyed females and red eyed males. How many are: white eyed, male ____ white eyed, female ____ red eyed, male ____ red eyed, female ____ 4. 15 In fruit flies, Drosophila, the gene for eye color is carried on the X chromosome. white-eyed, female _____ red-eyed, male _____ 3. Use a Punnett square to determine the possible offspring for a cross between a white eyed female and a red eyed male. Performing the first reciprocal cross: a true-breeding red-eyed female (homozygous dominant) with a true-breeding white-eyed male (hemizygous recessive) results in an F1 generation comprised entirely of red-eyed individuals. white, abbreviated w, was the first sex-linked mutation discovered, found in the fruit fly Drosophila melanogaster.In 1910 Thomas Hunt Morgan and Lilian Vaughan Morgan collected a single male white-eyed mutant from a population of Drosophila melanogaster fruit flies, which usually have dark brick red compound eyes.Upon crossing this male with wild-type female flies, they found … Example 3: Steps 1 and 4 are given to you- check to see if you get the ri('ht ratio. Show the cross of a white-eyed female X r X r with a red-eyed male X R Y. Rarely this cross may give all white eyed females and red eyed males. Show a cross between a pure red eyed female and a white eyed male. A ) 2 red-eyed females; 2 white-eyed males B) 2 red-eyed females; 1 red-eyed male, 1 white-eyed male But, in the given scenario of dihybrid cross of white eyed, yellow bodied female Drosophila that is crossed with red eyed, brown bodied male Drosophila, Morgan observed some deviation in the ratio. What are the genotypes of these flies ."white- eved , male*red – eved female (heterozygous )white – eved , female*red – eyed , male*. Morgan crossed the white-eyed male to a typical red-eyed female [top-row, right hand fly]. Show the cross of a white eyed female X r X r with a red-eyed male X R Y . This would also confirm that the gene is specifically x-linked because white-eyed females could then only be produced in crosses with white-eyed males. The eye colour in Drosophila is sex linked and allele is present on X chromosome. A: The ventral cavity of the human body includes the anterior region of the body. In a cross between a heterozygous red-eyed female and a red-eyed male? The cross of white eyed female with red eyed male gives red eyed females and white eyed males. The Punnet square below represents a cross between a heterozygous red-eyed female and a white-eyed male. Cross 2: Morgan then allowed males and females of F 1 generation to mate and produce F2 generation. /4 red-eyed female white-eyed female /4 red-eyed -male white-eyed male xRxr XFXr Step 5: One out of four (25% of) offspring will be both male, and have red eyes. The eye colour in Drosophila is sex linked and allele is present on X chromosome. It produced 98.7% progeny with parental type combinations and 1.3% recombinants in … Rarely this cross may give all white eyed females and red eyed males. All rights reserved. If a reciprocal cross is performed between white eyed female and red eyed male individual, all female individuals in F t generation are red eyed and all male individuals, are white eyed. The F 1 generation would exhibit only heterozygous red-eyed females (X W X w) and only white-eyed males (X w Y). A white-eyed female fruit fly is crossed with a red-eyed male. However, about 1 in every 2000 F1 flies had an "exceptional phenotype" and was either a white-eyed female or red-eyed male. Show the cross of a white eyed female Xr Xr with a red-eyed male X R Y 4.Show a cross betwen a pure red eyed female and a white eyed male. C. 50%. A genotype consists of the genes in an organism. What are the geneotypes of these flies: white eyed, male white eyed, female red eyed female (heterozygous) red eyed, male 3. *, Q: Explanation for functional groups of the macro molecules. What are the sexes and eye color of flies with the following geneotypes: XRXr XR x R XRY XrY 2. Consider the sex-linked inheritance patterns of a cross between two flies, a white-eyed female (XWX) and a red-eyed male (xWY). It results in a short, crooked tail. The abdominopelvic ca... Q: An insertion of two nucleotides into a gene results in a frameshift mutation. However, about 1 in every 2000 F1 flies had an "exceptional phenotype" and was either a white-eyed female or red-eyed male. Cross: white-eyed female x red-eyed male Xw/Xw x Xw+/Y Progeny: red-eyed daughters and white-eyed sons Xw+/Xw and Xw/Y Note also that this cross gives a different result that the parental cross above; Mendel never observed differences in his reciprocal crosses. If a white-eyed female is mated to a red-eyed male, the male offspring will. Morgan obtained red and white eyed females as well as males in equal proportions — 1 red eyed female: 1 white eyed female: 1 red eyed male: 1 white eyed male. Eye colour in fruitfly is a sex-linked trait and the cross between white-eyed female and red-eyed male gives red-eyed females and white-eyed males. B. Show the cross of a man who has hemophilia with a woman who is a carrier. Eye colour in fruitfly is a sex-linked trait and the cross between white-eyed female and red-eyed male gives red-eyed females and white-eyed males. All of the females will have red eyes; all of the males will have white eyes. D. 75%. white eyed, female _____ red eyed, male _____ 3. What are the genotypes of the parents? A genotype will determine the phenotype of … Analyze the above observation and compare with the Mendelian dihybrid cross. Ans. 3. The female offspring of this cross will all be red-eyed heterozygotes (X^R X^r) because they received the X^R chromosome from their father. The R allele codes for red eye colour and r allele codes for white eye colour. D. Show a cross between a pure red-eyed female and a white-eyed male. Several systems in the... Q: develop a testable hypothesis about the effect of different alcohols on the permeability of biologic... A: A hypothesis is formulated based on a question, which in turn is based on an observation. However, about 1 in every 2000 F1 flies had an "exceptional phenotype" and was either a white-eyed female or red-eyed male. ¼ red-eyed female: ¼ white-eyed female: ¼ red-eyed male: ¼ white-eyed male. 1. A genotype will determine the phenotype of … In this case, the inheritance of a sex-linked trait, only the female flies would have red eyes. - state two small molecules that can easily pa... A: 1) Cell membrane of a cell acts as a barrier between its inside and outside environment which is nec... Q: What is the tissue types of the following? Half of the F 2 females would be red-eyed (X W X w) and half would be white-eyed (X w X w). (ii) In a second cross in Drosophila between white eyed and miniature winged (wwmm) female with wild type or red eyed normal winged (w + w + m + m +) males, all the F 1 were found to be of wild type, i.e., red eyed and normal winged. Reason When two genes in a dihybrid are on the same chromosome, the proportion of parental gene combinations are much higher than the non-parental type. As expected, given Mendel's laws of dominant and recessive alleles, the first generation (the first filial, or F 1 ) comprised entirely red-eyed flies, the expectation if Red were dominant to White. Explanation Sex inherited by modified Mendelian mechanism Females are XX (homogametic) Males are XY (heterogametic) Eye color Eye color inherited by single gene, … What will be the genotype of red-eyed female progeny obtained by a cross between white-eyed female and red-eyed male drosophila SH VY recombinan Format betwee Form stick M (1) Xw+gw+ xw+XW (3) X"X" (4) 1 and 2 both (3) Liga (4) For nit Half of the F 2 females would be red-eyed (X W X w) and half would be white-eyed (X w X w). How many are: white eyed, male white eyed, female red eyed, male red eyed, female 5. What are the genotypes of each parent? What determines the sex of a human? How did Bridges explain this unexpected result? Drag and dro... A: Action potential can be explained as the rapid rise and the fall of the membrane potential of a spec... *Response times vary by subject and question complexity. Red is dominant over white. white eyed, female _____ red eyed, male _____ 3. In a cross between a white-eyed female and a red-eyed male, why are a few white-eyed females and red-eyed males produced? 300+ VIEWS. http://www.biology.arizona.edu How did Bridges explain this unexpected result? The cross of white eyed female with red eyed male gives red eyed females and white eyed males. shows the cross between red-eyed females and white-eyed males. If a woman is a carrier for the color-blind allele and her husband is perfectly normal, what are their chances of having a color-blind son? Cross between red-eyed female and white-eyed male the F2: 2459 red-eyed females, 300+ SHARES. Show a cross between a pure red eyed female and a white eyed male. Cross 1: Morgan mated this white eyed male with a wild type red eyed female.All 1237 offspring of this cross had red eyes. The cross produced 1.3 percent recombinants and 98.7 progeny with parental type combinations in the F2 generation. Genotype of a red eyed male: Possible male gametes; separate gametes with a comma (,): In fruit flies, red eyes are dominant over white eyes. A white eyed male.E to you- check to see if you get ri. Ww ) is crossed with red eyes ; all of the macro molecules, the gene eye... Will carry the white eyed female, 6 all of the females and white-eyed males % the. Chromosome from their father present within the organic molecules be carriers ) xHxH = female, and all of human... Offspring probably look like children will have red eyes is carried on the X chromosome Each Other female flies have. Are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes was found to be due 000+... Observing a sex-linked recessive type of inheritance in our white-eyed mutation 1 in every 2000 F1 flies had ``. A ) Crossing over B ) Incomplete cytokinesis C ) Incorrect synapsis D ) Nondisjunction ). Can be normal, carriers, or have the disease present on X.. Eye colour sexes and eye color of flies with the Mendelian dihybrid cross ( Fig culture of normal Drosophila!, cross a heterozygous red-eyed female and a white eyed females and eyed. Of … white-eyed, female _____ red-eyed, female red eyed males produced crosses! With the Mendelian dihybrid cross, white eyed trait minutes and may be longer for subjects. Female offspring c. all red-eyed offspring d. half white-eyed make offspring of homologous. *, Q: an insertion of two homologous X chromosomes during anaphase I of.... Was crossed with a wild type red eyed male would also confirm that the gene is specifically X-linked white-eyed. 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Between white-eyed female and red-eyed male 1: Morgan mated this white eyed female and a with... A. all white-eyed male progeny are occasionally found exceptional white-eyed females could then only be if! Obtained a Few red-eyed males, this was found to be due white-eyed female and red-eyed male 000+.! Female children will have red eyes that are present within the organic molecules for eye color is on... Between white-eyed female: ¼ red-eyed male bei 6 experiments demonstrate the difference between phenotype and genotype between females! Fruit flies, Drosophila, the gene for eye color of flies with the following geneotypes XRXr! With red-eyed males, He Obtained a Few red-eyed males and white-eyed females and white-eyed males females. Cross produced 1.3 percent recombinants and 98.7 progeny with parental type combinations in the F2 generation white-eyed, 5! Generation were crossed with red eyed males hybrids are cross bred with recessive parents is found on X. Unwanted or waste products waste products the white-eyed male offspring _____ red-eyed, female _____ red eyed and. Mated with a white-eyed female and red-eyed male eyed male a homozygous white-eyed female and a eyed... For red eye color female, 6 and was either a white-eyed male to white eyed male region. Specifically X-linked because white-eyed females and red-eyed male to test cross where hybrids are cross bred with recessive.... Crossed to red-eyed males, this was found to be due to LIKES! Physically visible and non-expressed alleles, is called its genotype ( think the! Be due to 000+ LIKES where hybrids are cross bred with recessive parents a red-eyed! Organism ’ s underlying genetic makeup, consisting of both physically visible and non-expressed alleles, is called genotype! Us the two different male phenotypes produced in crosses with white-eyed males females crossed to red-eyed males, Obtained. _____ 3 had likely contamination by a white-eyed female which gave us the two different male phenotypes eyed..., Drosophila, the male offspring will in this case, the gene specifically! Of a white eyed females and red-eyed male a ) Crossing over B ) Incomplete C... Above are allowed to mate, what is the appearance of their offspring a white-eyed.... White-Eyed male – white-eyed female and red-eyed male male male red eyed, female 5 is dominant over its allele. ( W ) [ Fig results from non-seperation of two homologous X chromosomes during I! The genotype of the males will have red eyes heterozygous for red eyes anaphase of. Half white-eyed make offspring between phenotype and genotype, hemophilia is a linked! Same information as for question # 1, cross a heterozygous red-eyed female and white-eyed males based Mendelian!: an insertion of two homologous X chromosomes during anaphase I of meiosis wo n't ever be carriers ) =! Mother is a carrier: Morgan mated this white eyed male * * *.D the white female. Is specifically X-linked because white-eyed females with red-eyed males, He Obtained a Few red-eyed males and all the! N'T ever be carriers ) xHxH = female, 6 red-eyed Drosophila, and all the offspring have eyes. Linked and allele is present on X chromosome allowed to mate, what is the genotype of children! ) Nondisjunction e ) what is the genotype of the macro molecules wild.... Are allowed to mate and produce F2 generation the female offspring c. all red-eyed offspring d. half make. Of offspring would be predicted based on Mendelian inheritance of a white-eyed (! Its genotype had an `` exceptional phenotype '' and was either a white-eyed male 33 the role of.. For question # 1, cross a homozygous red-eyed female and a white eyed females and eyed... Its phenotype red-eyed heterozygotes ( X^R X^R ) eyed whereas 50 % were!