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Q. No.Lederberg replica plating experiment explains that mutations are
1. Fast
2. Useful
3. Gradual change
4. Preadaptive changes
Subtopic: Concept of Organic Evolution: Evidence |
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If nature selects mean character value, it is
1. Stabilising selection
2. Disruptive selection
3. Directional selection
4. Progressive selection
1. Stabilising selection
2. Disruptive selection
3. Directional selection
4. Progressive selection
Subtopic: Natural Selection |
78%
From NCERT
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According to Hardy-Weinberg principle, sum total of all the allelic frequencies is
1. Zero
2. One
3. Infinite
4. Remain changeable
1. Zero
2. One
3. Infinite
4. Remain changeable
Subtopic: Hardy Weinberg Law |
88%
From NCERT
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Hardy-Weinberg principle is applicable to
1. Small population
2. Isolated population
3. Large population
4. All of these
1. Small population
2. Isolated population
3. Large population
4. All of these
Subtopic: Hardy Weinberg Law |
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Which of the following is considered as a pollution indicator?
1. Frequency of melanic moth
2. Lichens
3. Predator
4. Frequency of light coloured moth
1. Frequency of melanic moth
2. Lichens
3. Predator
4. Frequency of light coloured moth
Subtopic: Concept of Organic Evolution: Evidence |
89%
From NCERT
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Industrial melanism in moths provides example of
1. Balancing selection
2. Disruptive selection
3. Stabilizing selection
4. Directional selection
1. Balancing selection
2. Disruptive selection
3. Stabilizing selection
4. Directional selection
Subtopic: Concept of Organic Evolution: Evidence |
71%
From NCERT
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Finches on Galapagos islands distinctly represent a case of
1. Founder's effect
2. Analogous organs
3. Bottleneck effect
4. Convergent evolution
1. Founder's effect
2. Analogous organs
3. Bottleneck effect
4. Convergent evolution
Subtopic: Hardy Weinberg Law |
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Sexually interbreeding or potentially interbreeding group of individuals which is reproductively isolated from other species is
1. Biological species
2. Morphospecies
3. Evolutionary species
4. Sibling species
1. Biological species
2. Morphospecies
3. Evolutionary species
4. Sibling species
Subtopic: Concept of Speciation |
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Speciation in geographically separated region forms
1. Sibling species
2. Allopatric species
3. Sympatric species
4. Paraspecies
1. Sibling species
2. Allopatric species
3. Sympatric species
4. Paraspecies
Subtopic: Concept of Speciation |
55%
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Sympatric speciation is caused by
1. Genetic isolation
2. Interbreeding
3. Geographical isolation
4. Reproductive isolation
1. Genetic isolation
2. Interbreeding
3. Geographical isolation
4. Reproductive isolation
Subtopic: Concept of Speciation |
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