can you do question 8 The next two questions go together.Suppose the tail length of two populations of lizards is controlled by one gene. To determine themode of inheritance, a true-breeding short-tailed female is crossed with a true-breeding long-tailedmale. Then, siblings from the F1 are crossed and the number of short- and long-tailed animals arecounted to determine the phenotype ratio.1. What phenotypic ratio do you expect in the F2 generation if tail length is controlled by anautosomal gene, and long tails are dominant to short tails?1 long: 1 shortmales 1 long: 1 short, females all short3 long: 1 shortO 1 long: 3 shortQuestion 82. What phenotypic ratio do you expect in the F2 generation if tail length is controlled by a sex-linked gene, and long tails are dominant to short tails? Assume a chromosomal sex determinationsystem as in mammals, with XX females and XY males.1 long: 3 shortmales 1 long: 1 short, females all short1 long: 1 short3 long: 1 short

The alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Answered: Question 8 2. What phenotypic ratio do…

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter13: Patterns In Inherited Traits

Section: Chapter Questions

Problem 6GP: In sweet pea plant, an allele for purple flowers (P) is dominant when paired with a recessive allele...

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next several questions all refer to the following problem. In dragons, the following are simple, autosomal Mendelian traits: Forelimbs (f+) is dominant to no forelimbs (f-) Wings (w+) is dominant to no wings (W-) Horns (h+) is dominant to no horns (h-) You cross a dragon from a true-breeding line with forelimbs, wings, and horns, to a dragon from another true-breeding line with no forelimbs, no wings, and no horns. You then test-cross an F1 dragon to one with no forelimbs, no wings, and no horns. You obtain the following numbers of offspring: 622 forelimbs, wings, horns 630 no forelimbs, no wings, no horns 55 forelimbs, no wings, no horns 62 no forelimbs, wings, horns 104 forelimbs, no wings, horns 109 no forelimbs, wings, no horns 3 forelimbs, wings, no horns 6 no forelimbs, no wings, horns Which gene is in the middle? 1.) Forelimbs (f) 2.) Wings (w) 3.) Horns (h)
next several questions all refer to the following problem. In dragons, the following are simple, autosomal Mendelian traits: Forelimbs (f+) is dominant to no forelimbs (f-) Wings (w+) is dominant to no wings (W-) Horns (h+) is dominant to no horns (h-) You cross a dragon from a true-breeding line with forelimbs, wings, and horns, to a dragon from another true-breeding line with no forelimbs, no wings, and no horns. You then test-cross an F1 dragon to one with no forelimbs, no wings, and no horns. You obtain the following numbers of offspring: 622 forelimbs, wings, horns 630 no forelimbs, no wings, no horns 55 forelimbs, no wings, no horns 62 no forelimbs, wings, horns 104 forelimbs, no wings, horns 109 no forelimbs, wings, no horns 3 forelimbs, wings, no horns 6 no forelimbs, no wings, horns What is the distance between the f and w genes in cM? (round your answer to one decimal place)
Finish these crosses below:(assume all parents are homozygous for alleles) Cross 1:These are the parents: Sepia Male, Wild Type FemaleWhat are the alleles of the parents? (like Aa and AA / or like XY and XWXW+) Use a Punnett square below to determine the F1 generation phenotypic ratios. What is the phenotypic ratio of the F1? If two F1 individuals mated, what would the F2 phenotypic ratios be?
Finish these crosses below:(assume all parents are homozygous for alleles) Cross 3:These are the parents: Wild Type Male; White Eye FemaleWhat are the alleles of the parents? (like Aa and AA / or like XY and XWXW+) Use a Punnett square below to determine the F1 generation phenotypic ratios. What is the phenotypic ratio of the F1? If two F1 individuals mated, what would the F2 phenotypic ratios be?
I. Perform the indicated single-gene and two-gene crosses. Show all work. Show all Punnett squares. List the gene or genes involved, list and define all allele symbols, and indicate the genotypes of the individuals you are crossing above the Punnett square. Answer questions that ask for a ratio as a ratio and questions that ask for a percent as a percent. In humans, the allele for widow’s peak hairline is dominant to the allele for straight hairline. A woman with widow’s peak who is heterozygous marries a man with straight hairline and they decide to have children. Show the expected genotype ratio and phenotype ratio of the offspring. In snapdragon plants, the alleles for flower color show incomplete dominance. First show a cross of two parents, one with red flowers and the other with white flowers. Then show a cross of two of the F1 plants to get the F2 generation. Indicate the genotype ratio and phenotype ratio for both the F1 and F2 generations. A man with AB blood type…
Finish these crosses below:(assume all parents are homozygous for alleles) Cross 1: These are the parents: Sepia Male, Wild Type FemaleWhat are the alleles of the parents? (like Aa and AA / or like XY and XWXW+) Use a Punnett square below to determine the F1 generation phenotypic ratios. What is the phenotypic ratio of the F1? If two F1 individuals mated, what would the F2 phenotypic ratios be? Cross 2: These are the parents: Vestigial Wings, Wild Type Body Male; Wild Type Wings and Ebony Body Female What are the alleles of the parents? (like Aa and AA / or like XY and XWXW+) Use a Punnett square below to determine the F1 generation phenotypic ratios. What is the phenotypic ratio of the F1? If two F1 individuals mated, what would the F2 phenotypic ratios be? Cross 3: These are the parents: Wild Type Male; White Eye Female What are the alleles of the parents? (like Aa and AA / or like XY and XWXW+) Use a Punnett square below to determine the F1 generation phenotypic ratios.…
Finish these crosses below:(assume all parents are homozygous for alleles) Cross 2:These are the parents: Vestigial Wings, Wild Type Body Male; Wild Type Wings and Ebony Body FemaleWhat are the alleles of the parents? (like Aa and AA / or like XY and XWXW+) Use a Punnett square below to determine the F1 generation phenotypic ratios. What is the phenotypic ratio of the F1? If two F1 individuals mated, what would the F2 phenotypic ratios be?
I. Perform the indicated single-gene and two-gene crosses. Show all work. Show all Punnett squares. List the gene or genes involved, list and define all allele symbols, and indicate the genotypes of the individuals you are crossing above the Punnett square. Answer questions that ask for a ratio as a ratio and questions that ask for a percent as a percent. In snapdragon plants, the alleles for flower color show incomplete dominance. First show a cross of two parents, one with red flowers and the other with white flowers. Then show a cross of two of the F1 plants to get the F2 generation. Indicate the genotype ratio and phenotype ratio for both the F1 and F2 generations.
Draw a punnett square for each problem. Please be careful to notice whether a trait is homozygous or heterozygous. In rabbits it has been shown that albino (white) is recessive to the brown color, such as in the wild rabbit. If a homozygous albino rabbit and a homozygous brown rabbit are bred, what will be the color ratio of the first generation? Answer:___________brown _____________tan______________white 2. If a pure (homozygous) white guinea pig is bred with a hybrid (heterozygous) black guinea pig, what would be the probable color ratio of the next generation? Black is dominant. White is recessive. Answer:___________black _____________gray _____________white Thank you.
Freckles, F, is dominant to no freckles, f. A male heterozygous for freckles conceives with a female heterozygous for freckles. Calculate the genotypic and phenotypic ratios of the offspring. (Show all 5 steps) help please
A mouse from a true-breeding population with normal gait was crossed to a mouse displaying an oddgait called dancing. The F1 animals all showednormal gait.a. If dancing is caused by homozygosity for the recessive allele of a single gene, what proportion ofthe F2 mice should be dancers?b. If mice must be homozygous for recessive allelesof each of two different genes to have the dancing phenotype, what proportion of the F2 shouldbe dancers if the two genes are unlinked?(Assume that all the mice in the populationwith normal gait were homozygous fordominant alleles.)c. When the F2 mice were obtained, 42 normal and8 dancers were seen. Use the chi-square test todetermine if these results better fit the one-genemodel from part (a) or the two-gene model frompart (b).
You are conducting an experiment studying sex linked traits. I. The experiment you cross 2 different fruit Flys. The female fruit fly has red eyes and the male fruit fly has white eyes. In the first generation, both male and female Flys both have red eyes. After crossbreeding the offspring, you acquire the data given in the chart for the f2 generation. What would be the expected phenotypic ratio for a male sex linked trait in an f2 generation? Give a chi square analysis to determine if your previous answer is correct.

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