HARD
12th ICSE
IMPORTANT
Earn 100

Differentiate between zona pellucida and corona radiata.

Important Questions on Human Reproduction

HARD
12th ICSE
IMPORTANT
ISC Biology Class XII>Chapter 3 - Human Reproduction>Chapter Practice>Q 24
Various events occur up to the implantation of the blastocyst in the uterus. State them sequentially.
HARD
12th ICSE
IMPORTANT
ISC Biology Class XII>Chapter 3 - Human Reproduction>Chapter Practice>Q 25
What are the major changes that take place in the foetus during second trimester of the pregnancy?
HARD
12th ICSE
IMPORTANT
ISC Biology Class XII>Chapter 3 - Human Reproduction>Chapter Practice>Q 26
Differentiate between gestation period and pregnancy.
HARD
12th ICSE
IMPORTANT
ISC Biology Class XII>Chapter 3 - Human Reproduction>Chapter Practice>Q 27
Explain the development of a secondary oocyte (ovum) in a human female from the embryonic stage up to its ovulation. Name the hormones involved in this process.
HARD
12th ICSE
IMPORTANT
ISC Biology Class XII>Chapter 3 - Human Reproduction>Chapter Practice>Q 27
When does oogenesis start in humans? Name the three hormones and their sources, linked with oogenesis. Explain.
HARD
12th ICSE
IMPORTANT
ISC Biology Class XII>Chapter 3 - Human Reproduction>Chapter Practice>Q 28
What are the major features of embryonic development at various months of pregnancy?