Question

Sex-linked genes are expressed differently from autosomal genes. Put an F if the following is true for females and put an M if the following is true for males.
_____Offspring will inherit the gene as they do all other chromosomes.
_____Express the allele whether it is dominant or recessive since there is no second allele to mask the effects.
---------Offspring will inherit the gene on their X chromosome, but the gene will not be present on the Y chromosome.

Answer 1

Answer:

F - Offspring will inherit the gene as they do all other chromosomes.

M-Express the allele whether it is dominant or recessive since there is no second allele to mask the effects.

M -Offspring will inherit the gene on their X chromosome, but the gene will not be present on the Y chromosome.

Explanation :

1. Offspring will inherit the gene as they do all other chromosomes.

Since females have two X chromosomes and males have one X chromosome and one Y chromosome, the inheritance of chromosomes in males is not going to be the same as that of other chromosomes as the X and Y chromosomes do not have the same set of genes.

Thus, the given statement is only true for females.

2. Express the allele whether it is dominant or recessive since there is no second allele to mask the effects.

Since in males the Y chromosome lacks the corresponding allele for the X chromosome, the allele will be expressed irrespective of being dominant or recessive.

3. Offspring will inherit the gene on their X chromosome, but the gene will not be present on the Y chromosome.

In males, a particular gene will be inherited from the mother present on the X chromosome but not from the father since he contributes the Y gene which lacks the genes.