This would be true. the rust cray fish is an aggressive type that competes for food
Answer:
Y chromosome
Explanation:
The presence of the Y chromosome indicates a male, whereas the absence of it indicates a female.
Next, Mendel took the F1 progeny and allowed them to self-fertilize. In the resulting F2 generation, 3/4 showed the dominant phenotype, and 1/4 showed the recessive phenotype. ... 1 out of 3 round pea plants from the F2 generation were true-breeding and produced only offspring with round peas.
Xerostomia (hypo functioning of salivary glands )