In a cross between pure-breeding tall plants with pure-breeding short plants performed by Mendel, all of the F₁ are tall. When these plants are allowed to fertilize themselves, the F₂ plants occur in a ratio of 3 tall to 1 short. Which of the following is NOT a valid conclusion from these results? A) The allele that produces the tall condition is dominant to the allele that produces the short condition. B) The difference between tall and short stature in these lines is controlled by a single gene pair. C) During production of gametes in F₁ plants, the tall and short alleles segregate from each other equally into the gametes. D) The tall and short traits assort independently of each other in this cross. E) Fertilization occurs randomly between gametes carrying the tall and short alleles.

Question

Quizplus · Accepted Answer

The tall and short traits do not assort independently; they are controlled by the same gene pair, so they segregate, not assort independently.

In a Cross Between Pure-Breeding Tall Plants with Pure-Breeding Short