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Q.
At least _________ of sperms should have normal shape for normal fertility.
NTA AbhyasNTA Abhyas 2020Human Reproduction
Solution:
The human male ejaculates about 200 to 300 million sperms during coitus of which, for normal fertility, at least 60 per cent sperms must have normal shape and size and at least 40 per cent of them must show vigorous motility.