Question

A flower with tt genotype is cross pollinated with tt pollen grains . How to find genotypes of embryo and endosperm

Answer 1

Explanation:

 One of the sperm nuclei fuses with the egg and forms diploid zygote and then embryo. The other fuses with two polar nuclei and forms triploid endosperm. Here genotype of staminate flower or pollen grain is TT, so it will produce only one type of gamete i.e T.

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