If nature selects mean character value, it is 
1. Stabilising selection 
2. Disruptive selection 
3. Directional selection 
4. Progressive selection 

Subtopic:  Natural Selection |
 78%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

According to Hardy-Weinberg principle, sum total of all the allelic frequencies is 
1. Zero 
2. One 
3. Infinite 
4. Remain changeable 
Subtopic:  Hardy Weinberg Law |
 87%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Hardy-Weinberg principle is applicable to 
1. Small population 
2. Isolated population 
3. Large population 
4. All of these
Subtopic:  Hardy Weinberg Law |
Please attempt this question first.
Hints

advertisementadvertisement

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
Subtopic:  Concept of Organic Evolution: Evidence |
 89%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Industrial melanism in moths provides example of 
1. Balancing selection 
2. Disruptive selection 
3. Stabilizing selection 
4. Directional selection 
Subtopic:  Concept of Organic Evolution: Evidence |
 70%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Finches on Galapagos islands distinctly represent a case of 
1. Founder's effect 
2. Analogous organs 
3. Bottleneck effect 
4. Convergent evolution 
Subtopic:  Hardy Weinberg Law |
 52%
Please attempt this question first.
Hints

advertisementadvertisement

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 
Subtopic:  Concept of Speciation |
Please attempt this question first.
Hints

Speciation in geographically separated region forms 
1. Sibling species 
2. Allopatric species 
3. Sympatric species 
4. Paraspecies
Subtopic:  Concept of Speciation |
 56%
Please attempt this question first.
Hints

Sympatric speciation is caused by 
1. Genetic isolation 
2. Interbreeding 
3. Geographical isolation 
4. Reproductive isolation 
Subtopic:  Concept of Speciation |
Please attempt this question first.
Hints

advertisementadvertisement

Which of the following is not true? 
1. About 15 mya, primates called Dryopithecus and Ramapithecus were existing 
2. Ramapithecus was more ape like 
3. Homo erectus had a large brain around 900 cm3
4. The brain capacities were between 650 to 800 cm3 of Homo habilis
Subtopic:  Evolution of Homo Sapiens | Evolution Prior to Ape Man |
 82%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.