With traits showing maternal inheritance,such as leaf variegation in four o'clocks,reciprocal crosses usually
A) yield the same results.
B) yield different results.
C) yield results that can seldom be predicted.
D) eliminate the need for sexual reproduction.
E) show the trait to be X-linked.

Question

Quizplus · Accepted Answer

Reciprocal crosses can yield different results for traits showing maternal inheritance because the maternal genotype of the offspring is determined by the maternal parent in the cross. If the trait is controlled by genes in the cytoplasm, such as those found in chloroplasts or mitochondria, it will be inherited exclusively from the maternal parent and not the paternal parent. Therefore, the results of the cross will depend on which parent had the trait being studied.

With Traits Showing Maternal Inheritance,such as Leaf Variegation in Four