Question

In corn, the allele for yellow kernels (Y) is dominant to white kernels (y) and the allele for tall plants (T) is dominant to short plants (t). Which of the following statements best explains whythe cross YyTt x YyTT produces no short plants?A.Since all of the offspring will inherit a T allele from the second parent, all of the plants in the next generation will be tall.B.Since the trait for yellow kernel color masks the expression of the short trait, all of the plants in the next generation will be tall.C.Since the expression of the recessive trait tends to skip a generation, all of the plants in the next generation will be tall.D.Since the inheritance of the t allele is lethal, all of the plants in the next generation will be tall.

Answer 1

Considering the height trait, being T tall, and t short, the reason why the offspring of the breed between YyTt and YyTT will always have a T allele, as we can see in the following Punnet square: