De Vries based his "Mutation Theory" on his observation on:

(1) Pisum sativum

(2) Drosophila melanogaster

(3) Oenothera lamarckiana

(4) Caenorhabditis elegans

Subtopic:  Hugo De Vries Theory of Evolution |
 90%
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Which of the following is not a major evolutionary trend seen in the evolution of horse?

(1) Progressive increase in the number of toes

(2) Increase in the complexity of the molar teeth

(3) Lengthening of the limbs in general

(4) Enlargement of the brain

Subtopic:  Palentological Evidences of Evolution |
 50%
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Identify the correct statement:

1. As the coacervates do not have lipid outer membranes and cannot reproduce, they alone could not have been the precursors of life.

2. The microspheres could not be induced to constrict but had no large amount of diversity

3. The earliest life was probably not driven by the solar energy as is seen today

4. Protobionts cannot separate combination of molecules from the surroundings or maintain an internal environment but are able to reproduce.

Subtopic:  Origin of Life: Chemical Evolution: 2 | Origin of Life |
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Adenine was synthesized by Orgel, using the Miller apparatus, when he used the gas:

1. carbon dioxide

2. hydrogen cyanide

3. hydrogen sulfide

4. nitrogen

Subtopic:  Urey & Miller Experiment |
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The control apparatus of the Urey and Miller experiment was devoid of:

1. a provision for evaporation 

2. an arrangement for circulation

3. a source of energy

4. an arrangement for condensation

Subtopic:  Urey & Miller Experiment |
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The formation of a new species through change in a single lineage is known as:

(1) Anagenesis, or phyletic evolution

(2) Cladogenesis, or divergent evolution

(3) Convergent evolution

(4) Allopatry

Subtopic:  Concept of Speciation |
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Which of the following organisms alive today is likely to be most similar to the first life forms that evolved on the earth?

1. Methane producing bacteria

2. Cyanobacteria

3. Unicellular algae

4. Diatoms

 

Subtopic:  Definition & Types of Evolution |
 53%
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Darwin finches on the Galapagos Islands are an excellent example of:

1. Disruptive selection

2. Inheritance of acquired characters

3. Adaptive radiation

4. Convergent evolution

Subtopic:  Darwin's Theory |
 93%
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The presence of the monotremes and marsupials in the Australian continent can be explained by:

1.  Convergent evolution

2.  Adaptive radiation

3.  Punctuated equilibrium

4.  Gene flow 

Subtopic:  Concept of Organic Evolution: Evidence: 2 | Concept of Organic Evolution: Evidence |
 63%
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The similarities between the eyes of an octopus and of a mammal are a result of:

1. Convergent evolution

2. Divergent evolution

3. Saltation

4. Retrograde evolution

Subtopic:  Concept of Organic Evolution: Evidence: 2 | Concept of Organic Evolution: Evidence |
 85%
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