Chapter 3, Problem 35P

Summary Introduction

To analyze:

To calculate % frequency of female population with X-linked Red and Green colorblindness from the provided information

Introduction:

Color blindness is in reality a color vision deficiency of distinguishing the color difference. An red-green color blind individual has trouble differentiating in shades of red, yellow, and green colors.

It is an X-linked recessive disorder; the trait is passed from a mother to a son. A gene on the X chromosome governs the color vision with two alleles- (X^N- normal, Xⁿ- red-green color blindness). Females are generally heterozygous (X^N Xⁿ) for the trait while most often males are affected (XⁿY) with it. Females are only affected when both the parents pass on the mutated allele (Xⁿ Xⁿ).