NEET 2008 Biology question

Which one of the following pairs of plant structures has haploid number of chromosomes?

(1)Egg nucleus and secondary nucleus
(2)Megaspore mother cell and antipodal cells
(3)Egg cell and antipodal cellsCorrect
(4)Nucellus and antipodal cells

Answer: (3)

Solution

The embryo sac (female gametophyte) is haploid and consists of the egg apparatus (egg cell + 2 synergids), 3 antipodal cells and the central cell. The egg cell and the antipodal cells are therefore both haploid (n).

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Question ID VK-090095