Red-Green Color Blindness,which Involves a Deficiency of Photopigments in the Retina,is

question 41

True/False

Red-green color blindness,which involves a deficiency of photopigments in the retina,is an example of a recessive X-linked condition.

---

Definitions:

Recessively Inherited Trait

A genetic characteristic that is expressed in an organism only when two recessive alleles for the trait are inherited, one from each parent.

Chlorophyll

Green photosynthetic pigment of algae and plants that absorbs solar energy; occurs as chlorophyll a and chlorophyll b.

Phenotypes

The observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences.

Dominant Allele

Allele that exerts its phenotypic effect in the heterozygote; it masks the expression of the recessive allele.