Final answer:
Cotransformation is more likely between two genes that are close to one another on the same chromosome due to the decreased likelihood of crossover events separating them during meiosis.
Step-by-step explanation:
Cotransformation between two genes is more likely if they are close to one another on the same chromosome. This occurs because genes that are located near each other (linked genes) tend to be transmitted through meiosis together. During meiosis, the likelihood of a crossover event between two genes that are close is lower compared to genes that are far apart, which means they will most likely remain together (cotransformed) in the offspring. As genes get further apart, the probability of crossovers increases, leading to more recombinant offspring with nonparental genotypes.