Question

Fertilization in humans is practically feasible only if -

• A. The ovum and sperms are transported simultaneously to ampullary-isthmic junction of the fallopian tube
• B. The ovum and sperms are transported simultaneously to ampullary-isthmic junction of the cervix
• C. The sperm are transported into cervix within 48 hrs of release of ovum in uterus
• D. The sperm are transported into vagina just after the release of ovum in fallopian tube

Answer 1

Answer: (A)

Sperm and egg can lead to formation of zygote only when both of them are viable.
Life of sperm after insemination - 4 to 5 days
Life of egg after ovulation - 2 days