Draw a labelled diagram of sperm.

Important Questions on Human Reproduction

HARD

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 3 - Human Reproduction>Bihar Board-2020>Q 13

Describe the structure of seminiferous tubules with diagram.

MEDIUM

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 3 - Human Reproduction>Bihar Board-2020>Q 14

By the end of the second month of pregnancy, the foetus develops-

EASY

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 3 - Human Reproduction>Bihar Board-2020>Q 15

The chromosomes found in sperms-

HARD

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 3 - Human Reproduction>Bihar Board-2020>Q 16

Relaxin is secreted from-

MEDIUM

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 3 - Human Reproduction>Bihar Board-2020>Q 17

Male germinal cells are-

HARD

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 3 - Human Reproduction>Bihar Board-2020>Q 18

What are the hormones secreted by placenta ?

HARD

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 3 - Human Reproduction>Bihar Board-2020>Q 19

What is lactation ?

HARD

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 3 - Human Reproduction>Bihar Board-2020>Q 20

Draw the diagram of female reproductive system with well labelled organs. (Diagrammatic sectional view)