Question

which individual below would be considered to be homozygous? tt bb bb

Explanation:

Homozygous individuals have two identical alleles for a gene. "Tt" and "Bb" have two different alleles (heterozygous), while "bb" has two identical recessive alleles, so it is homozygous.

Answer:

C. bb (assuming the options are labeled A: Tt, B: Bb, C: bb)