The answer is A.They contain different genes
The answer to your question is,
Seafloor spreading
-Mabel <3
Only males can be carriers for X-linked recessive traits, False, it should read "Only females can be carriers for X-linked recessive traits."
<h3>What is an allele in a gene?</h3>
An allele is defined as an allele is a variant form of a gene.
For example, if both of your parents have green eyes, you might inherit the characteristic of green eyes from them.
Or if your motherhas freckles, you might have freckles too because you inherited the characteristic for freckles
Thus, option "A" is correct.
To learn more about Allele click here:
brainly.com/question/7602134
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Semen is the thick fluid that contains the sperm that is basic in nature, thus protecting it from the acidic nature of the vagina.