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What is Point Mutation? Give One Example. - Biology

What is point mutation? Give one example.

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Solution

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.

Concept: Concept of Mutation
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APPEARS IN

NCERT Class 12 Biology Textbook
Chapter 5 Principles of Inheritance and Variation
Q 14 | Page 94
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