What is co-dominance ? Explain with example.

Important Questions on Principles of Inheritance and Variation

MEDIUM

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Bihar Board-2020>Q 25

Discuss the characters chosen by Mendel in garden pea. Mention the advantages of selecting this plant for experiment.

HARD

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Bihar Board-2020>Q 26

When a pyrimidine base is substituted in place of purine in a mutation, is called-

HARD

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Bihar Board-2020>Q 27

Why a man cannot pass on a sex linked gene to his son ?

HARD

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Bihar Board-2020>Q 28

“The sex of the body is determined by the father and not by the mother”. Explain this statement.

EASY

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Bihar Board-2020>Q 29

The different forms of a gene are called-

MEDIUM

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Bihar Board-2020>Q 30

Down’s syndrome or Mongolism in child is due to-

HARD

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Bihar Board-2020>Q 31

Skin colour of man is controlled by-

HARD

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Bihar Board-2020>Q 32

Possible blood group in children from the parent with$‘\mathrm{B}’$and $‘\mathrm{O}’$ blood group are-