Deficiency of enzyme homogentisic acid oxidase leads to :-

Important Questions on Principles of Inheritance and Variation

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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:

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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

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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?

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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

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Beta Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>EXERCISE- I (Conceptual Questions)>Q 2

On which plant Mendel had carried out his investigations :-

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Beta Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>EXERCISE- I (Conceptual Questions)>Q 3

Mendel formulated the law of purity of gametes on the basis of :-

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Beta Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>EXERCISE- I (Conceptual Questions)>Q 4

A cross between $\mathrm{AaBB} \mathrm{X} \mathrm{aaBB}$ yields a genotypic ratio of :-

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Beta Question Bank for Medical: Biology>Chapter 27 - Principles of Inheritance and Variation>EXERCISE- I (Conceptual Questions)>Q 5

In monohybrid cross what is the ratio of homozygous dominant and homozygous recessive individuals in ${\mathrm{F}}_2$-generation :-