Question

Normal males always express the phenotype associated with X-linked alleles.

a. True
b. False

Answer 1

False. Normal males always express the phenotype associated with X-linked alleles.

Step-by-step explanation:

No, the statement is False. Normal males always express the phenotype associated with X-linked alleles. This is because males have only one X chromosome and therefore have only one allele for any X-linked trait. As a result, a recessive X-linked allele is always expressed in males. In contrast, females have two X chromosomes and therefore have two alleles for any X-linked trait. In order for a recessive X-linked trait to be expressed in females, they must inherit two copies of the recessive allele.