Genetic variation in a population arises due to:
1. Recombination only
2. Mutations as well as recombination
3. Reproductive isolation and selection
4. Mutations only
Subtopic:  Mutation |
 88%
Level 1: 80%+
NEET - 2013
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Point mutation involves:

1. insertion

2. change in single base pair

3. duplication 

4. deletion

Subtopic:  Mutation |
 92%
Level 1: 80%+
AIPMT - 2009
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