Question

how is the variegated leaf trait inherited? a. variegation is inherited from the male parent. the nucleus of the male gamete transforms into a chloroplast. b. variegation is inherited from the female parent. only the egg cell contributes cytoplasm with chloroplasts to the embryo. c. variegation is inherited as a codominant trait, causing white and green leaf patches. d. variegation is inherited from the male parent. the male gamete contributes cytoplasm containing chloroplasts to the embryo

Explanation:

Variegated leaf traits are linked to chloroplast DNA, which is inherited via cytoplasmic inheritance (maternal inheritance). In most plants, only the female gamete (egg) contributes cytoplasm (and thus chloroplasts) to the developing embryo, while male gametes typically contribute little to no cytoplasm. Codominance refers to nuclear gene inheritance, which does not explain this trait, and male parent inheritance of this trait is not supported by cytoplasmic inheritance principles.

Answer:

B. Variegation is inherited from the female parent. Only the egg cell contributes cytoplasm with chloroplasts to the embryo.