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.

c

explanation:

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.