Multiple choice

Which of the following statements regarding fertilisation in human beings is false?

  1. Semen passes through the urethra.

  2. Sperm swims towards the egg by chemotaxi.

  3. The male and female pronuclei move towards each other while duplicating their DNA in S phase.

  4. Fertilisation begins with the binding of sperm head to the glycoprotein coating of the egg.

  5. Follicle stimulating hormone opens catsper channels in the plasma membrane surrounding the anterior portion of the sperm tail.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Progesterone opens catsper ("cation sperm") channels.

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