MEDIUM
12th CBSE
IMPORTANT
Earn 100

What is the significance of ampullary-isthmic junction in the female reproductive tract?

Important Questions on Human Reproduction

MEDIUM
12th CBSE
IMPORTANT
How does zona pellucida of ovum help in preventing polyspermy?
 
HARD
12th CBSE
IMPORTANT
Mention the importance of LH surge during the menstrual cycle. 
MEDIUM
12th CBSE
IMPORTANT
Which type of cell division forms spermatids from the secondary spermatocytes?
 
MEDIUM
12th CBSE
IMPORTANT

A human female experiences two major changes, menarche and menopause during her life. Mention the significance of both the events.

MEDIUM
12th CBSE
IMPORTANT
How many spermatozoa are formed from one secondary spermatocyte?
HARD
12th CBSE
IMPORTANT
Where does the first cleavage division of zygote take place?
HARD
12th CBSE
IMPORTANT
Corpus luteum in pregnancy has a long life. However, if fertilisation does not take place, it remains active only for 10-12 days. Explain.
HARD
12th CBSE
IMPORTANT
What is foetal ejection reflex? Explain how it leads to parturition.