Human Reproduction Question 84
84. What is true about cleavage in fertilized egg of humans?
[1994]
(a) Meroblastic
(b) Starts when egg reaches uterus
(c) Starts in fallopian tube
(d) It is identical to normal mitosis
Show Answer
Answer : c
Hints & Solutions
(c) The ovum is released by the ovary is transported to the ampullary isthmic junction where fertilisation takes place. The mitotic division starts as the zygote moves through the isthmus of the oviduct called cleavage towards the uterus and forms 2, 4, 8 and 16 daughter cells called blastomeres. The embryo with 8 to 16 blastomeres is called morula.
