Why might a gene have more than 2 different alleles a DNA se

Why might a gene have more than 2 different alleles?

a.     DNA sequence can deviate in many places (base-pairs)

b.     DNA sequence can only deviate in one place (base-pair)

c.     DNA sequence cannot deviate

d.     Genes can only have 2 possible alleles

Solution

Answer:

a.     DNA sequence can deviate in many places (base-pairs)

Explanation:

Multiple alleles means that there are three or more forms of a gene for a trait. That doesn\'t mean that a person can have all three of them.