What are the functions of placenta?

Important Questions on Human Reproduction

EASY

12th West Bengal Board

IMPORTANT

A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 3 - Human Reproduction>EXERCISE>Q 6

What do you mean by monoestrous and polyestrous animals.

EASY

12th West Bengal Board

IMPORTANT

A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 3 - Human Reproduction>EXERCISE>Q 7

What is ovulation? What happened to the graafian follicles after ovulation?

EASY

12th West Bengal Board

IMPORTANT

A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 3 - Human Reproduction>EXERCISE>Q 8

What do you mean by cleavage and morula?

EASY

12th West Bengal Board

IMPORTANT

A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 3 - Human Reproduction>EXERCISE>Q 9

Name the hormones secreted by the ovary and describe their functions?

EASY

12th West Bengal Board

IMPORTANT

A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 3 - Human Reproduction>EXERCISE>Q 10

Explain why the first half of the menstrual cycle is called the proliferative phase as well as the follicular phase.

EASY

12th West Bengal Board

IMPORTANT

A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 3 - Human Reproduction>EXERCISE>Q 11

What is gametogenesis? Name its two types and give at least two differences between them.

EASY

12th West Bengal Board

IMPORTANT

A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 3 - Human Reproduction>EXERCISE>Q 12

Briefly describe the structure of seminiferous tubules in human.

EASY

12th West Bengal Board

IMPORTANT

A TEXT BOOK OF BIOLOGY CLASS 12>Chapter 3 - Human Reproduction>EXERCISE>Q 13

Differentiate between spermatogenesis and oogenesis.