Some bacteria are able to grow in Streptomycin containing medium due to:

1. Natural selection

2. Induced mutation

3. Reproductive isolation

4. Genetic drift

Subtopic:  Darwin's Theory |
 64%
Level 2: 60%+
AIPMT - 2002
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Which one of the following sequences was proposed by Darwin and Wallace for organic evolution?

1. Overproduction, variations, constancy of population size, natural selection
2. Variations, constancy of population size, overproduction, natural selection
3. Overproduction, constancy of population size, variations, natural selection
4. Variations, natural selection, overproduction, constancy of population size
Subtopic:  Darwin's Theory |
Level 3: 35%-60%
AIPMT - 2003
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Diversification in plant life appeared:

1. Due to abrupt mutations
2. Suddenly on earth
3. By seed dispersal
4. Due to long periods of evolutionary changes 
Subtopic:  Darwin's Theory |
 76%
Level 2: 60%+
AIPMT - 2004
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