The different forms of a gene are called-

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 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-

HARD

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Bihar Board-2020>Q 33

Mendel worked on-

HARD

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Bihar Board-2020>Q 34

What do you mean by mutation ?

EASY

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Bihar Board-2020>Q 35

Mendel’s mono hybrid ratio is-

EASY

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Bihar Board-2020>Q 36

An organism with two identical alleles is said to be

EASY

12th Bihar Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 5 - Principles of Inheritance and Variation>Bihar Board-2020>Q 37

A person suffering from colorblindness can not differentaite between-