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.

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%