I’ve been struggling so much on this I need help on question 2 please! Sex-Linked Traits and PedigreesCertain genes are found solely on the X chromosome, and arereferred to as sex-linked traits because men and women havedifferent probabilities of inheriting them. female genotypes areXX, while males have XY.lower case1. White eyes in Drosophila is a recessive sex-linked trait. Show theoffspring to be expected from a cross of a white-eyed male and ahomozygous normal red-eyed female. Show the Punnettsquares and the chances their offspring will have white eyes.XRXRparents = Xr, YrXR, XRMale offspring 0% white eyesXr XR,XrXR, XrFemale offspring0% white eyesXR, YYXR, YF2. A colorblind man marries a woman with normal vision whose father was colorblind. Use a Punnett square toshow and explain what type of vision their potential children would have.parents =female childrenmale childrenE 3.Two normal-visioned parents have a colorblind son. What are the genotypes of the parents? What is theDELLDII火%23$4346.78回 85

Colour blindness is an acquired condition that influences males more oftentimes than females. As…

Answered: 2. A colorblind man marries a woman…

2. A colorblind man marries a woman with normal vision whose father was colorblind. Use a Punnett square to show and explain what type of vision their potential children would have.

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter19: Introduction To Genetics

Section: Chapter Questions

Problem 9CT

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Question

I’ve been struggling so much on this I need help on question 2 please!

Sex-Linked Traits and Pedigrees
Certain genes are found solely on the X chromosome, and are
referred to as sex-linked traits because men and women have
different probabilities of inheriting them. female genotypes are
XX, while males have XY.
lower case
1. White eyes in Drosophila is a recessive sex-linked trait. Show the
offspring to be expected from a cross of a white-eyed male and a
homozygous normal red-eyed female. Show the Punnett
squares and the chances their offspring will have white eyes.
XR
XR
parents = Xr, Yr
XR, XR
Male offspring 0% white eyes
Xr XR,Xr
XR, Xr
Female offspring
0% white eyes
XR, Y
Y
XR, Y
F2. A colorblind man marries a woman with normal vision whose father was colorblind. Use a Punnett square to
show and explain what type of vision their potential children would have.
parents =
female children
male children
E 3.
Two normal-visioned parents have a colorblind son. What are the genotypes of the parents? What is the
DELL
DII
火
%23
$4
3
4
6.
7
8
回 85

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