Genetics & Evolution UPSC Questions

Biology

Genetics & Evolution MCQ Questions


7.

The _________ from the sun broke up water into Hydrogen and Oxygen and the lighter H2 escaped.

A.

Xray

B.

Ozone Layer

C.

Nuclear

D.

UV Rays

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ANSWER :

D. UV Rays

8.

Which combined with ammonia and methane to form water, CO2 and others ?

A.

Oxygen

B.

Oxide

C.

Hydrogen

D.

Nitrogen

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ANSWER :

A. Oxygen

9.
The __________ was formed the water vapor fell as rain, to fill all the depressions and form oceans.
A.
Mesosphere
B.
Earth
C.
Ozone Layer
D.
Atmosphere
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ANSWER :
C. Ozone Layer
10.
The ______ thinkers thought units of life called spores were transferred to different planets including earth.
A.
Early Greek
B.
Griffith
C.
Walter Sutton
D.
Francis Crick
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ANSWER :
A. Early Greek
11.
_____________ is still a favourite idea for some astronomers.
A.
Abiogenesis
B.
Panspermia
C.
Exosphere
D.
Ozone Layer
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ANSWER :
B. Panspermia
12.
Who experimentation demonstrated that life comes only from pre-existing life?
A.
Walter Sutton
B.
Thomas Hunt
C.
Early Greek
D.
Louis Pasteur
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ANSWER :
D. Louis Pasteur