When mutations exhibit complementation this means the mutations are located:
a. in the same gene
b. in the different genes
c. in between genes
d. in non-coding dna
e. in introns

The correct option is: b. in the different genes

Explanation:

In an organism, complementation is observed when the two strains with the different homozygous recessive mutations are mated or crossed to produce an offspring having wild-type phenotype.

Complementation is observed when the mutations are present in different genes.

Therefore, mutations are said to be complementary, if they are present in different genes.

the most speciallized is b. grizzly bear