All genes located on the same chromosome

Important Questions on Principles of Inheritance and Variation

MEDIUM

12th CBSE

IMPORTANT

Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 2

Conditions of a karyotype 2n + 1, 2n - 1 and 2n + 2, 2n - 2 are called 

MEDIUM

12th CBSE

IMPORTANT

Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 3

Distance between the genes and percentage of recombination shows

MEDIUM

12th CBSE

IMPORTANT

Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 4

If a genetic disease is transferred from a phenotypically normal but carrier female to only some male progeny, the disease is:

EASY

12th CBSE

IMPORTANT

Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 5

If a plant heterozygous for tallness is selfed, the F₂ generation has both tall and dwarf plants. It proves the principle of

EASY

12th CBSE

IMPORTANT

Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 6

In sickle cell anaemia, glutamic acid is replaced by valine. Which one of the following triplets codes for valine?

EASY

12th CBSE

IMPORTANT

Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 7

Person having genotype I^A I^B would show the blood group as AB. This is because of

MEDIUM

12th CBSE

IMPORTANT

Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 8

ZZ/ZW type of sex determination is seen in

EASY

12th CBSE

IMPORTANT

Xam Idea Biology>Chapter 5 - Principles of Inheritance and Variation>Multiple Choice Questions [1 mark]>Q 9

A cross between two tall plants resulted in offspring having few dwarf plants. What would be the genotypes of both the parents?