Which one of the following statements is false in respect of viability of mammalian sperm?

Which one of the following statements is false in respect of viability of mammalian sperm?
  1. Sperm is viable for only up to $24 \mathrm{~h}$
  2. Survival of sperm depends on the $\mathrm{pH}$ of the medium and is more active in alkaline medium
  3. Viability of sperm is determined by its motility
  4. Sperms must be concentrated in a thick suspension

Solution

Sperms are viable for $24 \mathrm{~h}$ to $48 \mathrm{~h}$, whereas the human ovum is viable only for $24 \mathrm{~h}$.

Asked in: NEET 2012 (Screening)

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