Question

A flower of tomato plant, following the process of sexual reproduction, produces 200 viable seeds. Answer the following question giving reasons:- a) What would have been the minimum no. of ovules present in per- pollinated pistil? b) How many microspore mother cells would minimally be required to produce requisite number of pollen grains? c) How many pollen grains must have minimally pollinated the carpel? d) How many male gametes would have used to produce these 200 viable seeds? e) How many megaspore mother cells were required in this process?

Answer 1

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Answer 2

Answer:

It is given that the number of viable seeds produced by the tomato plant through the sexual reproduction = 200.

(a) To obtain 2o0 seeds, the number of pollen grains which are needed must be 200.

(b) Number of the ovules involved in the process would be 200, as the numbers of viable seeds are 200.

(c) During gametogenesis process, 200 megaspore mother cells must be involved as one megaspore becomes functional.

(d) The number of male gametes would also be 200.