Industrial melanism is an example of 

1. defensive adaptation of skin against ultraviolet radiations

2. drug resistance

3. directional selection due to smoke from industries

4. protective resemblance with the surroundings

Subtopic:  Genetic Basis of Adaptation |
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The homologous organs are those that show similarity in

1. size

2. origin

3. function

4. apprearance 

Subtopic:  Concept of Organic Evolution: Evidence: 1 | Concept of Organic Evolution: Evidence |
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The occurrence of endemic species in South America and Australia is due to  

1. Extinction of these species from other regions

2. Continental separation

3. No terrestrial route to these places

4. Retrogressive evolution 

Subtopic:  Concept of Speciation |
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Genetic drift is change of 

1. gene frequency in same generation 

2. appearance of recessive genes

3. gene frequency from one generation to next 

4. None of the above

Subtopic:  Sources of Variation: 2 | Sources of Variation |
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Thorn of Bougainvillea and tendril of Cucurbita are examples of  
1. analogous organs

2. homologous organs

3. vestigial organs

4. retrogressive evolution 

Subtopic:  Concept of Organic Evolution: Evidence: 1 | Concept of Organic Evolution: Evidence |
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Adaptive radiation refers to

1. adaptations due to geographical isolation 

2. evolution of different species from a common ancestor

3. migration of members of a species to different geographical areas

4. power of adaptation in an individual to a variety of environments

Subtopic:  Concept of Organic Evolution: Evidence: 2 | Concept of Organic Evolution: Evidence |
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Random genetic drift in a population probably results from   

1. large population size

2. highly genetically variable individuals

3. interbreeding within small isolated population 

4. constant low mutation rate

Subtopic:  Sources of Variation: 2 | Sources of Variation |
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Which one of the following features is closely related with the evolution of humans?

1. Loss of tail                         

2. Shortening of jaws

3. Binocular vision                   

4. Flat nails

Subtopic:  Introduction to Human Evolution |
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Homo sapiens evolved during

1. Pleistocene 

2. Oligocene

3. Pliocene 

4. Miocene

Subtopic:  Evolution of Homo Sapiens |
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Identify the correct sequence in which the following substances have appeared during the course of evolution of life on earth.

1. glucose, amino acids, nucleic acids, proteins

2. ammonia, amino acids, proteins, nucleic acids

3. water, amino acids, nucleic acids, enzymes

4. amino acids, ammonia, phosphates, nucleic acids

Subtopic:  Origin of Life: Chemical Evolution: 1 | Origin of Life |
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