NEET 2016 Biology question

Fertilization in humans is practically feasible only if:

(1)The sperms are transported into vagina just after the release of ovum in fallopian tube
(2)The ovum and sperms are transported simultaneously to ampullary - isthmic junction of the fallopian tubeCorrect
(3)The ovum and sperms are transported simultaneously to ampullary - isthmic junction of the cervix
(4)The sperms are transported into cervix within 48 hrs. of release of ovum in uterus

Answer: (2)

Solution

Fertilization takes place in the ampullary-isthmic junction of the fallopian tube. It can occur only if the ovum (viable for about 24 hours) and the sperms (viable for about 48-72 hours) reach this junction at the same time (NCERT, Human Reproduction). Hence option (2). Option (1) is wrong because sperms

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Question ID VK-091945