31.
What is sequence in the evolution of man
A
Fish - amphibian - bird - man
B
Insect-fish bird-man
C
Fish-amphibian-reptile-man
D
Fish-amphibian-bird-man
Answer :
Fish-amphibian-reptile-man
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32.
Genetic drift is change of
A
gene frequency in same generation
B
appearance of recessive genes
C
gene frequency from one generation to next
D
none of the above
Answer :
gene frequency from one generation to next
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33.
Life originated in which era
A
Proterozoic
B
Mesozoic
C
Precambrian
D
Coenozoic
Answer :
Precambrian
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34.
Extremities, tail and ear are relatively shorter in animals living in cooler regions as compared to those inhabiting warmer zones. This is
A
Bergman's Rule
B
Jordan's Rule
C
Gloger's Rule
D
Allen's Rule
Answer :
Allen's Rule
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35.
Occurrence of 4 horns instead of two in goat is an example of
A
Continuous variation
B
Discontinuous variation
C
Inheritable variation
D
Acquired variation
Answer :
Discontinuous variation
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36.
Chances of inheritable and evolutionary changes are more in such species which reproduce by
A
Parthenogenesis
B
Fission
C
Sexual reproduction
D
Asexual reproduction
Answer :
Sexual reproduction
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37.
Origin of life took place in which of the following period
A
Mesozoic
B
Proterozoic
C
Precambrian
D
Devonian
Answer :
Precambrian
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38.
Which of the following had the smallest brain capacity?
A
Homo sapiens
B
Homo neanderthalensis
C
Homo habilis
D
Homo erectus
Answer :
Homo habilis
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39.
"Continuity of germplasm" theory was given by
A
de Vries
B
Weismann
C
Darwin
D
Lamarck
Answer :
Weismann
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40.
Which of the following are homologous organs?
A
Wings of birds and locust
B
Wings of birds (sparrow) and pectoral fins of fish
C
Wings of bat and butterfly
D
Legs of frog and cockroach
Answer :
Wings of birds (sparrow) and pectoral fins of fish
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