Answer:
Explanation:
It is easy to produce a strain of plants that are homozygous recessive because the recessive trait is already present in the plant's genome. If a plant is homozygous recessive for a particular trait, it means that it has two copies of the recessive allele for that trait. If two plants that are homozygous recessive for the same trait are crossed, all of their offspring will also be homozygous recessive for that trait, because they will inherit a copy of the recessive allele from each parent.
Additionally, it is often easier to identify and select for homozygous recessive plants because the recessive trait is more easily observable. For example, if a plant breeders is trying to produce a strain of plants that are homozygous recessive for a particular trait, they can simply select plants that exhibit the recessive trait and breed them together. This process can be repeated over several generations to produce a strain of plants that are homozygous recessive for the desired trait.
