Question

Brayden is trying to figure out how petal shape is determined in two different roses. In the pink rose, the copies of the gene are the same as each other. In the yellow rose, the copies of the gene are different from each other. How does this affect how many types of proteins there are in each petal cell?
Responses

a
The pink rose has one type of protein for the petal shape feature. The yellow rose has two types of protein for the petal shape feature.
The pink rose has one type of protein for the petal shape feature. The yellow rose has two types of protein for the petal shape feature.

b
The pink rose has one type of protein for the petal shape feature. The yellow rose has one type of protein for the petal shape feature.
The pink rose has one type of protein for the petal shape feature. The yellow rose has one type of protein for the petal shape feature.

c
The pink rose has two types of protein for the petal shape feature. The yellow rose has two types of protein for the petal shape feature.
The pink rose has two types of protein for the petal shape feature. The yellow rose has two types of protein for the petal shape feature.

d
It is impossible to say anything about proteins from the given information.

Answer 1

Answer: a

Explanation: If the two copies (alleles) are the same — as in the pink rose (homozygous) — they produce the same version of the protein, so one protein type. If the two copies are different — as in the yellow rose (heterozygous) — they can produce two different protein variants, so two protein types. (This assumes the different alleles code for different protein products.)