Do a Punnett square for a cross between a homozygous red-eyed female (XR XR ) and a white-eyed male (Xr Y). What would be the genotypes of the female F1 flies? ____ phenotype? ______ What would be the genotypes of the male F1 flies? ___ phenotype? _______ Do a Punnett square for the F2 results if one of the F1 females mated with one of the F1 males. *To show results of sex-linked traits:Divide phenotypes into males and females first, keep results as fractions (or %).List the phenotypes, with the corresponding genotype (in parentheses) next to each phenotype. Males: Females: A sex-linked trait in humans: hemophilia = blood clotting disorder. Normal clotting (XN) is dominant to hemophilia (Xn).Do a Punnett square for a normal clotting (homozygous dominant) woman and a man with hemophilia.

In Drosophila, white eye colour is recessive X-linked trait while red eye colour is dominant.…

Answered: a Punnett square for a cross between a…

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter11: The Basic Principles Of Heredity

Section: Chapter Questions

Problem 2TYU: The F1 flies described in question 1 were mated with brown-eyed flies from a true-breeding line....

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Do a Punnett square for a cross between a homozygous red-eyed female (XR XR ) and a white-eyed male (Xr Y).

What would be the genotypes of the female F1 flies? ____ phenotype? ______

What would be the genotypes of the male F1 flies? ___ phenotype? _______

Do a Punnett square for the F2 results if one of the F1 females mated with one of the F1 males.

*To show results of sex-linked traits:

Divide phenotypes into males and females first, keep results as fractions (or %).
List the phenotypes, with the corresponding genotype (in parentheses) next to each phenotype.

Males:

Females:

A sex-linked trait in humans: hemophilia = blood clotting disorder.

Normal clotting (XN) is dominant to hemophilia (Xn).

Do a Punnett square for a normal clotting (homozygous dominant) woman and a man with hemophilia.

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