Chapter 16, Problem 15PIAT

Summary Introduction

To review:

The reason for possible similarity between the skin color allele of Europeans and Africans.

Introduction:

Mutation is the permanent change in nucleotide sequence of the DNA due to chance or environmental factors and leads to alteration in the phenotype of an organism, such as skin color, behavior, hair color, and shape.

The allele of the human transport protein associated with light skin is found mostly in Europeans. The other common allele, which appears to be the ancestral allele, is found in Africans.