Author Question: The only way a recessive trait such as red hair can be expressed in the phenotype is if a person has ... (Read 131 times)

armygirl · **on:** Jun 22, 2018

The only way a recessive trait such as red hair can be expressed in the phenotype is if a person has

a. one recessive gene and one dominant gene.
b. two recessive genes.
c. a sex-linked inheritance.
d. two red-haired parents.

Question 2

What are alleles?

a. different types of genes c. different versions of the same gene
b. the same versions of a gene d. identical genes