Uchit Patel
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What is point mutation? Give one example.

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NCERT Solutions for Class 12 Biology Chapter 5 Principle of Inheritance and Variation
Important Board Questions
Principle of Inheritance and Variation
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Question : 14

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  1. Point mutation is a change in a single base pair of DNA by substitution, deletion, or insertion of a single nitrogenous base. An example of point mutation is sickle cell anaemia. It involves mutation in a single base pair in the beta-globin chain of haemoglobin pigment of the blood. Glutamic acid in short arm of chromosome II gets replaced with valine at the sixth position.

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