A plants can have either brown (B) or red (b) leaves. Brown is the dominant trait. If a plane has a genotype bb; which best describes the plant.

Explanation:

A plants can have either brown (B) or red (b) leaves with brown being a dominant trait meaning that it can be BB or Baby

While the red leaves are inherited in the recessive condition as bb.

Thus, a plant with a genotype of bb can be described as having a phenotype/ an appearance with red leaves i.e. the plants produces red leaves due to this genotype.