Question

Pea plants have either purple or white flowers, where purple is dominant. What cross would guarantee the offspring plants have only white flowers?(1 point)
Responses

Both parents would be homozygous recessive.
Both parents would be homozygous recessive.

Both parents would be heterozygous.
Both parents would be heterozygous.

Both parents would be homozygous dominant
Both parents would be homozygous dominant

One parent is homozygous dominant, and one would be homozygous recessive.

Answer 1

In order to guarantee that the offspring plants have only white flowers, both parent plants must be homozygous recessive. This is because the only way to produce offspring with the white flower phenotype (which is recessive) is if both parents contribute a recessive allele.

So the correct response is:

**Both parents would be homozygous recessive.**