Question
Biology Question on human reproduction
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
The ovum and sperms are transported simultaneously to ampullary-isthmic junction of the fallopian tube
Explanation
Solution
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