In fruit flies, an autosomal mutation in the gene for wing veining results in cross veinless wings. this mutation is recessive. at another gene, an autosomal recessive mutation results in white eyes. which of the following indicates the genotype of an individual heterozygous at both loci?
a. cv+cv w+ w
b. cv+cv w+w
c. v+v r+ r
d. v+v r+r

B. cv+cv w+w

Explanation:

Fruit flies have a special nomenclature to write the genotype of individuals.

In this problem, both crossveinless (cv) and white (w) mutations are recessive.

For that reason, a heterozygous individual's genotype for both genes will be written as:

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.