Question

Duchene muscular dystrophy, or DMD, is a recessive, x-linked disease. What would you expect to see in the offspring of a woman who has DMD and a man who does not have the disease?
All of their sons and none of their daughters would have the disease.

None of their children would have the disease, but they would all be carriers.

All of their daughters and none of their sons would have the disease.

Their daughters would have the disease and their sons would be carriers.

Answer 1

None of their children would have the disease, but they would all be carriers. Because the X-linked disease is recessive which mean that it is not the main base so if you use punett squares and would get that all of the genomes are Xx, Xx, Xx, Xx which show you that there is a 0% chance of them two people having a child with that disease but there children could have a child with that disease if they had a mate that had that recessive gene.

Answer 2

Answer:

Option B

Explanation:

Given -

Duchene muscular dystrophy is a recessive x-linked disease

A cross is carried out between a woman having DMD and a man who does not have a disease.  

Let X' represents the affected allele.  

The genotype of female would be X'X'

and the genotype of male would be YX

The offspring produced would be as follows -  

YX * X'X'

YX', YX', XX', XX'

This means that all the offspring are carrier and none of them is affected.

Hence, option B is correct