Complementation analysis is used to determine .
a. whether a gene is X-linked or autosomal
b. whether two alleles are codominant
c. whether a gene is pleiotropic
d. whether two mutations that produce the same phenotype reside in the same or different genes

Option D.

Whether two mutations that produce the same phenotype reside in the same or different genes.

Explanation:

Complementation analysis is a process that occur between two strains of homozygous recessive and cause mutations that produce the same phenotype present in the same or different genes when mated or crossed.

Each genetic material provide what the other lacks.

yes? sounds right, but you didn’t ask a question.

the correct answer is b