1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Darwin in his 'Natural Selection Theory' did not believe in any role of which one of the following in organic evolution ?
A
Survival of the fittest
B
Parasites and predators as natural enemies
C
Discontinuous variations
D
Struggle for existence
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Which one of the following is categorised under living fossils ?
A
Cycas
B
Metasequoia
C
Pinus
D
Selaginella
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Random genetic drift in a population probably results from
A
Constant low mutation rate
B
Interbreeding within this population
C
Large population size
D
Highly genetically variable individuals
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Which of the following is important for speciation ?
A
Behavioural isolation
B
Seasonal isolation
C
Tropical isolation
D
Reproductive isolation

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