1
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Change Language
Random undirectional change in allele frequencies that occur by chance in all populations and especially in small populations is known as :-
A
Genetic drift
B
Migration
C
Mutation
D
Natural selection
2
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Change Language
Genetic variation in a population arises due to :
A
Reproductive isolation and selection
B
Mutations only
C
Mutations as well as recombination
D
Recombination only
3
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Change Language
The finch species of Galapagos Islands are grouped according to their food sources. Which of the following is not a finch food ?
A
Insects
B
Carrion
C
Tree buds
D
Seeds
4
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
According to Darwin, the organic evolution is due to -
A
Reduced feeding efficiency in one species due to the presence of interfering species
B
Competition within closely related species
C
Intraspecific competition
D
Interspecific competition
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