Read the given problem :
1.A color-blindness is a recessive,sex-linked disorder humans, A color-blind man has a child with a woman who is a carrier of the disorder.

KEY:X=normal vison X^=color blindness

Illustrate using a punnett square the probability of having children who will have normal vision and children who will be color-blind.

GUIDE QUESTIONS :
1.What is the genotype of the male ?
2.What is the genotype of the female ?
3.What is the chance that the child will be color-blind ?
4.What is the chance that a daughter will be color-blind?
5.What is the chance that a son will be color-blind ?

1

Answers

2016-07-21T06:12:37+08:00
1. MALE-XX
2.FEMALE-XY
3.yes,because X is dominant!
4.more chances of colorblind because X is very dominant
5.MORE AND MORE
1 4 1