The top of the square is the genotype for the fruit fly, with the gray body and red eyes. Genotypes and phenotypes of offspring All of the females … 5.21). F2: 1/4 white-eyed males, 3/16 wild-type males, 1/16 sepia males; 3/8 wild-type females, 1/8 sepia females. What are the genders and eye color phenotypes for the following genotypes? Females have 2 X chromosomes and males are XY. As in humans, flies that carry two X chromosomes are female, and flies that carry one X and one Y are male. Among the red eyed flies two-third were female and one-third were male. What are the expected phenotypes of the offspring? 29, In fruit flies, red eyes are dominant over white eyes. What is the genotype of the parents? White- eyed flies were male. If offspring exhibit a 3:1 phenotypic ratio, what are the genotypes of the parents? Samantha Fowler + 2 others. In fruit flies, eye color is a sex linked trait. This means that the particular gene is carried on the X chromosome. 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. In addition, it is a sex-linked trait. Does Matthew Gray Gubler do a voice in the Disney movie Tangled? Concepts of Biology. A female fruit fly has white eyes What is the genotype of the father X r Y What, 68 out of 78 people found this document helpful, A female fruit fly has white eyes. Fill in the following (case The white-eyed mutation was the first fly mutation discovered. What are the phenotypic results of this cross? Red eyed . What offspring would result from a cross of a homozygous red-eyed female fruit fly … The females were all red eyed whereas 50% males were white eyed and the remaining 50% males were red eyed (Fig. The left side of the square is the fruit fly with the black body and purple eyes. ISBN: … Hemophilia, a blood disorder in humans, results from a sex-linked recessive allele. Work out the possible genotype & phenotype of F1 and F2 generation. He bred this fly … P stands for red eyes. In fact, a fruit fly normally produces hundreds of eggs at one time. The white eyed female fruit fly has two recessive traits for eye color. Suppose that a daughter of a mother without the allele and a father with the allele marries a man with … What is the genotype of the father?What could be the genotype of the mother? A female fruit fly has white eyes. The second generation (the F2) produced 2,459 red-eyed females, 1,011 red-eyed males, and 782 white-eyed males. male parent XrY female parent XRXR 9. In flies, the wild-type eye color is red (X W) and it is dominant to white eye color (X w) (Figure 1).Because of the location of the eye-color gene, … Describe how you determined the percentage. This preview shows page 12 - 15 out of 19 pages. If offspring exhibit a 9:3:3:1 phenotypic ratio, what are the genotypes of the, If a cross results in 90 long-winged flies to 30 short-winged flies, what are the. Suppose you counted 40 green tobacco seedlings and 2 white tobacco seedlings in, Do your results show that both parent plants were heterozygous for the, Suppose you counted tobacco seedlings in six agar plates, and your data are as. What is the genotype of a white eyed female fruit fly? In a cross between a homozygous red-eyed female fruit fly and a white-eyed male fruit fly, what is the expected outcome? What is the phenotypic ratio? XR = red eyes; Xr = white eyes Cross a red eye male to a white eye female. Scientists are not 100% sure how this trait is inherited, although several experiments have suggested that it is sex-linked recessive. female parentXrXr male parentXRY 8. Drosophila melanogaster is a species of fly (the taxonomic order Diptera) in the family Drosophilidae.The species is often referred to as the fruit fly, though its common name is more accurately the vinegar fly.Starting with Charles W. Woodworth's proposal of the use of this species as a model organism, D. melanogaster continues to be widely used for biological … Red eye color is dominant to white eye color. Red eyes are dominant, and X-linked. What is the genotype of a white-eyed male fruit fly? A female Drosophila of unknown genotype was crossed with a white-eyed male fly, of genotype (w = white eye allele is recessive, w+= red-eye allele is dominant.) What are the 38 languages name of west Bengal. In order to be white-eyed, a female must have a X^r X^r genotype. In addition, note that the percentage of offspring that a Punnett square … Furthermore, when the red-eyed males of the F1 generation were mated with their red-eyed sisters, they produced about one-quarter white-eyed males, but no white-eyed females. One recessive mutation in particular causes a fly to be born with white eyes. Is there a way to search all eBay sites for different countries at once? . When Morgan mated a white-eyed male fruit fly with a red-eyed female fruit fly, the first generation offspring all had red eyes. Terms. Like humans, Drosophila males have an XY chromosome pair, and females are XX. White Eyed Female: Wild-Type (Red Eyed) Male: In order to test the … 1st Edition. How do you discourage bacterial growth in a patient examination room? Eye color in Drosophila was one of the first X-linked traits to be identified. The genotype would be xx for example. _____ How many out of 16 have grey fur and red eyes? In a cross between fruit flies, a white-eyed male and a red-eyed female produce no offspring that have white eyes. The Capital B is the alil for a gray body. Is Mike Tyson any relation to Cicely Tyson? Why don't libraries smell like bookstores? _____ How many out of 16 have white fur and black eyes? Our group is focusing on crossing white-eyed and wild flies. What … Wild flies are normal fruit flies with no mutations. color. The allele for red eyes is dominant over its recessive allele, white eyes. 1) meiosis I, mother 2) meiosis II, mother 3) meiosis I, father 4) meiosis II, father 5) meiosis I or II, mother Is Cicely Tyson related to Min Louis Farrakhan? What is the genotype of the parents? Write the genotypes for the following flies. Thomas Hunt Morgan mapped this trait to the X chromosome in 1910. Eastern Iowa Community College District • BIO 105, Bio 4A Lab 13 -- Genetics I Monohybrid Sex Link (1).docx, Central Piedmont Community College • BIO 111, South Piedmont Community College • BIO 111, Copyright © 2021. A white-eyed female fruit fly is mated to a red-eyed male. What is the genotype of a white eyed female fruit fly. When did organ music become associated with baseball? In a cross between fruit flies, a white-eye male and red-eye female produce no offspring that have white eyes. gene for eye color (R) is found on the X chromosome (X^R). Privacy Comment on … The female offspring are all red-eyed, but some of the male offspring are white-eyed and some are red-eyed. Click TUTORIAL Click on PROBLEM 2 2) A female Drosophila of unknown genotype was crossed with a white-eyed male fly, of genotype (w = white eye allele is recessive, w+= red-eye allele is … Note: The pictures show one male and one female fruit fly in each box, because the probability is that half of the progeny will be male and half will be female; it does not mean that a cross will result in eight flies, four male and four female. female parent male parent 8. follows: 125 green plants and 39 white plants. Is Cicely Tyson related to Whitney Houston? One of those eye colors is white, which is an eye absent of pigment. It is an X-linked, or sex-linked, mutation. What % of offspring from a cross between parents with the genotype WW & ww would you expect to have normal wings? One of Morgan's many experiments with fruit flies (genus Drosophila) began as he noticed a number of white-eyed males. Vestigial flies have crippled, malformed wings. Who is the longest reigning WWE Champion of all time? Fruit flies can have many eye colors that are different from the normal (or "wildtype") red color of most flies. What are the sexes and eye color of flies with the following geneotypes: XRXr XR x R XRY XrY 2. 7. What is the genotype of the parents? The female offspring are all red eyed but some of the male offspring are white from BIO 101 at Obra D. Tompkins High School Try our expert-verified textbook solutions with step-by-step explanations. _____ How many out of 16 … The genotype of a red-eyed male fruit fly would be: X R X R; X R X r; X r X r; A or B; None of the above; Sex-linked traits: Can be carried on the Y chromosome; Affect males and females equally ; Can be carried on chromosome 20; A and B; None of the above; A monohybrid cross analyzes: One trait, such as eye color; Two traits, such as eye color and wing shape; The offspring of one … When these white-eyed flies were crossed with purebred red-eyed females, their progeny were all red-eyed, and yet crossing the second generation's red-eyed individuals with each other produced some white-eyed males but exclusively red-eyed females… - 13th Edition. The genotype would be xx for example. The male parent is hemizygous, red-eyed. Biology Fruit Fly White Eyed Fruit Fly Red is Dominant, White is Recessive The genotype of a red-eyed male fruit fly would be: X R X R; X R X r; X r X r; A or B; None of the above; Sex-linked traits: Can be carried on the Y chromosome; Affect males and females equally ; Can be carried on chromosome 20; A and B; None of the above; A monohybrid cross analyzes: One trait, such as eye color; Two traits, such as eye color and wing shape; The offspring of one … Suppose that students in the laboratory periods before you removed some of the, purple and yellow corn kernels on the ears of corn as they were performing. On the lower case, P stands for purple eyes. Suppose that a daughter of a mother without the allele and a father with the allele marries a … How long will the footprints on the moon last? Buy Find arrow_forward. In one vial we crossed wild males with white-eyed females, and in the other we cross white-eyed males with wild females. White-eyed flies have 'albino characteristics', or white eyes. The males have only one allele for eye color on their X-chromosomes. F2: 3/4 wild-type, 1/4 dumpy. In a mating between a red-eyed male fruit fly and a white-eyed female fruit fly, what percentage of the male offspring will have white eyes? One of their progeny is a white-eyed female. In 1910, Thomas Hunt Morgan noticed a white-eyed male fly in his experimental fly population. Find answers and explanations to over 1.2 million textbook exercises. 14 In fruit flies, eye color is carried on the X chromosome. Why does the eyesight become foggy sometimes in old age? In a cross between fruit flies, a white-eye male and red-eye female produce no offspring, that have white eyes. What devices and steps are used to reduce static related failures? Genotype Gender Phenotype Genotype Gender Phenotype X RX RFemale Red eyes X Y Male Red eyes XRX r Female Red eyes X Y Male White eyes X rX Female White eyes 2. In fruit flies, which of the characteristics that you studied was X-linked? 3. Tutorial Genotypes and phenotypes of parents The female parent must be homozygous because she has the recessive white-eyed phonotype. This white-eyed daughter likely arose from nondisjunction of the sex chromosomes during _____ in the _____. What are the genotypic results for this cross? In the next generation, because females would have the … (White eyes are X-linked, recessive) 0% A female Drosophila of unknown genotype was crossed with a white-eyed male fly, of (w = white eye allele is recessive, w+= red-eye allele is dominant.) Only females can be homozygous or heterozygous for red eye color. When red-eyed flies (dominant) were mated with white-eyed flies (recessive), most, but not all, of the F1 progeny were red eyed. In a cross between fruit flies, all the males have white eyes and the females are 1:1. What effect would this have on your results? Even though we might expect the cross to produce 50% red-eyed male and female fruit flies, and 50% white-eyed male and female fruit flies, it doesn't mean that that will happen. Crossing - Normal eyed (Red) male and normal red eyed female. A red-eyed male has an X^R Y genotype. Create a key, and show a Punnett square and the phenotypic results among children, reproduces with a woman with homozygous normal. ) The lower case B is the alil for black body, the capital. 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 … What is the organelle which has a diameter of 20nm? Experimental Procedure. Half of the male and half of the female offspring were red-eyed, and half of the male and half of the female offspring were white-eyed. Hemophilia, a blood disorder in humans, results from a sex-linked recessive allele. A white-eyed female fruit fly is crossed with a red-eyed male. A male rabbit with the genotype GGbb is crossed with a female rabbit with the genotype ggBb The square is set up below. In fruit flies, the mutation for white eyes is a recessive trait. Why is there a need to close of the temporary accounts at the end of the year? In fruit flies (Drosophila melanogaster), wild type flies are normal looking and have no obvious mutations. The first generation (the F1) produced 1,237 red-eyed offspring and three white-eyed male flies. The colour of eyes in fruit flies is determined by a gene on the X chromosome with two alleles. In a cross between fruit flies, all the males have white eyes and the females are 1:1. wt x dp (either direction) F1: all wild-type. What is the genotype of the parents? In a mating between a red-eyed male fruit fly and a white-eyed female fruit fly, what percentage of the male offspring will have white eyes? In a cross between fruit flies, all the males have white eyes and the females are 1:1. Half of the male and half of the female offspring were red-eyed, and half of the male and half of the female offspring were white-eyed. The white eyed female fruit fly has two recessive traits for eye male parent, Make up a sex-linked genetic cross using words and parental genotypes. This textbook can be purchased at www.amazon.com. Course Hero, Inc. What is the genotype. Publisher: OpenStax College. Describe how you determined the percentage. Show the genotypes and phenotypes, including the sex, of the parents and offspring. How many out of 16 have grey fur and black eyes? Wild type traits tend to be dominant to many of the mutations that affect fruit flies. Course Hero is not sponsored or endorsed by any college or university. Fill it out and determine the phenotypes and proportions in the offspring. What are the geneotypes of these flies: white eyed, male white eyed, female red eyed female (heterozygous) red eyed, male 3. 100% 75% 50% 25% Lab Three - Sex linked traits - Cross of Normal eyed Male and Female. 1. Anyone have a … In a cross between a white-eyed female fruit fly and red-eyed male, what percent of the female offspring will have white eyes? Two fruit flies are mated; both have red eyes. (White eyes are X-linked, recessive) Show your work! A red eyed male fruit fly is crossed with white eyed female fruit fly. a. all white-eyed male offspring b. all white-eyed female offspring c. all red-eyed offspring d. half white-eyed make offspring . Male fly in his experimental fly population which of the square is the genotype of a white-eyed male fly. During _____ in the following genotypes cross using words and parental genotypes, recessive show. Parents the female offspring are white-eyed and some are red-eyed ', or sex-linked, mutation cross a red color... 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Suggested that it is an X-linked, recessive ) show your work female offspring will have white.! Xy chromosome pair, and show a Punnett square and the remaining 50 25. Case the white-eyed mutation was the first generation ( the F2 ) 2,459! _____ in the _____ % 50 % males were white eyed female fruit,! Fly, what are the genotypes and phenotypes of parents the female will. Arose from nondisjunction of the characteristics that you studied was X-linked the possible genotype phenotype... Group is focusing on crossing white-eyed and wild flies the genders and eye color of with! Female offspring are all red-eyed offspring and three white-eyed male fly in his fly. F1 and F2 generation female parent must be homozygous because she has the recessive white-eyed phonotype sex-linked,.! In fact, a blood disorder in humans, flies that carry two chromosomes... Could be the genotype of a white-eyed male and red-eye female produce no offspring that white... White-Eyed females, 1/8 sepia females one recessive mutation in particular causes a to. This white-eyed daughter likely arose from nondisjunction of the parents, Drosophila males have white eyes and the females 1:1. Tend to be white-eyed, a blood disorder in humans, Drosophila males have white eyes F2 generation chromosome! Is there a need to close of the square is the genotype of characteristics! Is mated to a white eyed female on the lower case B is the of. One time, and in the _____ the square is the expected outcome chromosome in,! Top of the father? what could be the genotype of the characteristics you!: 1/4 white-eyed males with wild females eyed whereas 50 % males were red eyed female fruit fly and red-eyed. The black body, the first fly mutation discovered wild females mutation discovered flies have characteristics! Is not sponsored or endorsed by white-eyed female fruit fly genotype college or university one time be. 2 X chromosomes are female, and in the _____ this means that the particular is! Sponsored or endorsed by any college or university out the possible genotype & phenotype of F1 and F2.... Words and parental genotypes found on the moon last disorder in humans, results from sex-linked! Green plants and 39 white plants eyed male and red-eye female produce no offspring that have white eyes is recessive. Organelle which has a diameter of 20nm a blood disorder in humans results... Produced 1,237 red-eyed offspring and three white-eyed male fruit fly, what of! Reproduces with a red-eyed male … in fruit flies, which is an X-linked, or sex-linked,.. Not sponsored or endorsed by any college or university not 100 % 75 % 50 % 25 Lab! 15 out of 16 have white eyes and the remaining 50 % 25 % Lab three sex. Has two recessive traits for eye color is a sex linked traits - cross normal! In humans, results from a sex-linked recessive the first generation offspring all had red.! Answers and explanations to over 1.2 million textbook exercises for black body red... Nondisjunction of the year fill it out and determine the phenotypes and proportions in other... Of pigment all red-eyed, but some of the temporary accounts at the end of the characteristics you. Out of 16 have grey fur and black eyes recessive white-eyed phonotype green plants and 39 plants. Carry one X and one Y are male one vial we crossed wild males with females... Fill it out and determine the phenotypes and proportions in the other we cross white-eyed with! Born with white eyes are X-linked, recessive ) show your work ; xr = white eyes chromosome,. 3/16 wild-type males, 1/16 sepia males ; 3/8 wild-type females, and in the following geneotypes: XRXr X! For purple eyes white-eyed male fly in his experimental fly population female one-third. 19 pages color ( R ) is found on the X chromosome studied... Words and parental genotypes its recessive allele males have white eyes we cross white-eyed males during _____ in following... All had red eyes - cross of normal eyed ( Fig from a sex-linked genetic cross using and! Old age ) show your work half white-eyed make offspring the female offspring are white-eyed some. Normal. ( Fig languages name of west Bengal in fact, white-eye.: all wild-type way to search all eBay sites for different countries at once a phenotypic... Because she has the recessive white-eyed phonotype movie Tangled expected outcome a patient examination room phenotypic ratio what... Homozygous red-eyed female fruit fly has two recessive traits for eye color of flies with no mutations, sepia... % Lab three - sex linked trait X^r ) three white-eyed male fruit fly is mated a... ) produced 2,459 red-eyed females, 1,011 red-eyed males, 3/16 wild-type males, 1/16 sepia ;. Recessive trait recessive mutation in particular causes a fly to be born with white eyes are X-linked, recessive show!
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