1
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Diversification in plant life appeared
A
By seed dispersal
B
Due to abrupt mutations
C
Due to long periods of evolutionary changes
D
Suddenly on earth
2
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
According to oparin, which one of the following was not present in the primitive atmosphere of the earth ?
A
Water vapour
B
Oxygen
C
Methane
D
Hydrogen
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
In a random mating population in equilibrium, which of the following brings about a change in gene frequency in a non-directional manner : -
A
Selection
B
Random drift
C
Mutations
D
Migration
4
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Convergent evolution is illustrated by : -
A
Bacterium and protozoan
B
Rat and dog
C
Dogfish and whale
D
Starfish and cuttle fish

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