Question

Which of the following is incorrect w.r.t. fertilisation to occur?

• A. The sperms must reach the falllopian tube.
• B. An ovum degenerates within 24 hours after its release.
• C. Sperms remain fertile for only one day.
• D. Ejection of sperm from the penis into the vagina takes place.

Answer 1

The correct option is C Sperms remain fertile for only one day.

In order for fertilisation to take place, sperm must first reach the female reproductive tract.
Coitus, also known as sexual intercourse must end in ejaculation or ejection of sperm from the penis into the vagina.
Sperms are capable of remaining fertile in the female reproductive tract for up to 5 days after their entry to wait for an ovum to be released.
Since an ovum degenerates within 24 hours, sperm must have entered the female reproductive tract within a period of 4-5 days before or within a few hours after ovulation for fertilisation to take place.