A Genetic cross also cross breeding is the deliberate breeding of two different individuals that results to offspring that carry part the genetic material of each parent. A monohybrid cross is the breeding of two organisms that differ in a single trait. A hybrid is an offspring from a cross between parents and has different phenotypes for a specific trait.
Answer:
Because Lumbricina ( Earthworm ) Is a living, breathing, animal
Explanation:
The answer is a. no controls
An organism with a sign gene has 2 forms
