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 Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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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
Transcribed Image Text: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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