If a pea plant ovary has 20 ovules. Then the maximum number of (i) megaspores and (ii) functional megaspores in that ovary will be

(i) 80 & (ii) 20

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(i )20 & (ii) 20

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(i) 100 & (ii) 80

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(i) 800 & (ii) 200

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Solution

The correct option is A
(i) 80 & (ii) 20

Total megaspores produced by 20 ovules = 20 $\times$ 4 = 80.

In each tetrad only one is functional megaspore.

Therefore, the no. of functional megaspores = 20.

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All four megaspores in the ovule are functional. True or false?

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