NEET 2006 Biology question

The arrangement of the nuclei in a normal embryo sac in the dicot plants is-

(1)2 + 4 + 2
(2)3 + 2 + 3Correct
(3)2 + 3 + 3
(4)3 + 3 + 2

Answer: (2)

Solution

A normal (Polygonum-type) embryo sac is 7-celled and 8-nucleate. Three cells (the antipodals) at the chalazal end, two polar nuclei in the large central cell and three cells (the egg apparatus: one egg and

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Question ID VK-089723