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Some dioecious species have the XY genotype for male and XX for female. After double fertilization, what would be the genotypes of the embryos and endosperm nuclei?
A. embryo XY/ endosperm XXX or embryo XX/endosperm XXY
B. embryo XX/endosperm XX or embryo XY/endosperm XY
C. embryo XX/endosperm XXX or embryo XY/endosperm XYY
D. embryo XX/endosperm XXX or embryo XY/endosperm XXY

Respuesta :

The answer is (D) embryo XX/endosperm XXX or embryo XY/endosperm XXY.

The main distinction between the embryo and endosperm is that the endosperm serves as the seed's nutritive tissue, whereas the embryo is the conceptus of fertilization. Furthermore, sperm and a binucleate central cell fuse to form an endosperm, while an egg cell and a sperm combine to form an embryo. Additionally, the endosperm is triploid while the embryo is diploid.

Angiosperm seeds contain two different types of structures: embryos and endosperm. Double fertilization is a process that causes both to happen. The two sperm nuclei in the pollen tube are also responsible for their formation in both cases.

Learn more about endosperm here:-

https://brainly.com/question/2173340?referrer=searchResults

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