A heterozygous plant with the genotype (BbMm) produces two types of gametes: (BM) and (bm). What is the probability that a (bm) gamete will fertilize either a (BM) or a (bm) gamete?

Explanation

Since the plant is heterozygous (BbMm), it forms gametes (BM) and (bm) with equal likelihood. Therefore, the chance that a (bm) gamete fertilizes either a (BM) or a (bm) gamete is half, or 50%.