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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For the stability of the organic compounds, Oparin opined that probably:
1. UV radiation never reached the surface of the primeval Earth
2. the primeval Earth was in a molten state
3. the primeval Earth atmosphere was reducing rather than oxidizing
4. plenty of energy sources were available for chemical reactions to occur

Subtopic:  Origin of Life: Chemical Evolution: 1 | Origin of Life |
 78%
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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 |
 54%
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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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Which of the following would lead to deviation from Hardy-Weinberg equilibrium?

1. Random mating

2. Lack of mutations

3. No gene flow or gene migration

4. Natural selection

Subtopic:  Hardy Weinberg Law: 1 | Hardy Weinberg Law |
 60%
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The now extinct reptile group that evolved into mammals was:

1. Therapsids

2. Dinosaurs

3. Thecodants

4. Sauropsids

Subtopic:  Palentological Evidences of Evolution |
 52%
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Identify the correct statement:

1. Dryopithecus was more man like than Ramapithecus

2. Homo Habilis probably did not eat meat

3. Homo Erectus had a cranial capacity of around 800 cc

4. Agriculture came around 18000 years ago

Subtopic:  Evolution Prior to Ape Man: 1 | Evolution Prior to Ape Man |
 71%
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A population of an animal is hunted down to only 20 organisms. Later the number is restored to 10,000 organisms, but the variations in this population are highly reduced. This is called:

1. Founder Effect

2. Bottleneck effect

3. Edge effect

4. Heterosis

Subtopic:  Sources of Variation: 2 | Sources of Variation |
 62%
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