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Biology · PYQ NEET UG 2017

हिन्दी

The function of copper ions in copper releasing IUDs is:

  1. They suppress sperm motility and fertilising capacity of sperms.
  2. They inhibit gametogenesis.
  3. They make uterus unsuitable for implantation.
  4. They inhibit ovulation.

Correct answer · Option 1

They suppress sperm motility and fertilising capacity of sperms.

Explanation

Copper ions released from copper-releasing IUDs suppress sperm motility and their fertilizing capacity.
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