NEET 2004 Biology question

When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is :-

(1)Pentaploidy
(2)Diploidy
(3)Triploidy
(4)TetraploidyCorrect

Answer: (4)

Solution

Let the haploid chromosome set be x. A diploid (2x) female plant produces an embryo sac whose egg and two polar nuclei each have one set (x). A tetraploid (4x) male plant produces pollen grains whose male gametes each have 2x. The endosperm

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Question ID VK-089534