The mechanism of sex determination in birds shows :

Important Questions on Principles of Inheritance and Variation

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>BEGINNER'S BOX>Q 21

Which of the following symbols and its representation is correct :-

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>BEGINNER'S BOX>Q 22

 The pedigree shows

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>BEGINNER'S BOX>Q 23

If a couple has four girls, the probability of fifth child being male, is

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>BEGINNER'S BOX>Q 24

Deficiency of enzyme homogentisic acid oxidase leads to :-

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>BEGINNER'S BOX>Q 25

(2n-1) condition of chromosomes is called:

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>BEGINNER'S BOX>Q 26

Addition or deletion of a nitrogenous base causes

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>BEGINNER'S BOX>Q 27

Trisomy of which chromosome is involved in Down's syndrome?

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>EXERCISE- I (Conceptual Questions)>Q 1

A complete set of chromosomes inherited as a unit from one parent is known as