181.
Random unidirectional change in allele frequencies that occurs by chance in all populations and especially in small populations is known as
A
Mutation
B
Migration
C
Natural selection
D
Genetic drift
Answer :
Genetic drift
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182.
Who called water of primitive sea as pre biotic soup
A
Haldane
B
Oparin
C
Fox
D
Huxley
Answer :
Haldane
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183.
Industrial melanism is an example of :
A
Natural selection
B
Mutation
C
Neo Lamarckism
D
Neo Darwinism
Answer :
Natural selection
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184.
Which one of the following statements is correct?
A
Cro-Magnon man's fossil has been found in Ethiopia
B
Homo erectus is the ancestor of man
C
Neanderthal man is the direct ancestor of Homo sapiens
D
Australopithecus is the real ancestor of modern man
Answer :
Homo erectus is the ancestor of man
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185.
Some bacteria are able to grow in Streptomycin containing medium due to
A
natural selection
B
Induced mutation
C
reproductive isolation
D
genetic drift
Answer :
natural selection
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186.
Which fossil man had cranial capacity almost equal to modern man
A
Australopithecus
B
Java ape man
C
Neanderthal man
D
Peking man
Answer :
Neanderthal man
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187.
Who gave experimental proof that hydrogen, methane water and ammonia gave rise to amino acids
A
Stanley Miler
B
Charles Darwin
C
Lamarck
D
Oparin
Answer :
Stanley Miler
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188.
The fossil of primitive man recovered from shivalik hills in India
A
Oligopithecus
B
Parantyhropus
C
Ramapithecus
D
Propliopithecus
Answer :
Ramapithecus
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189.
In which era reptiles were dominant?
A
Coenozoic era
B
Mesozoic era
C
Palaeozoic era
D
Archaeozoic era
Answer :
Mesozoic era
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190.
Primitive atmosphere was reducing because
A
Hydrogen atmos were few
B
Hydrogen atmos were active and in greater number
C
Nitrogen atmos were more
D
Oxygen atmos were more
Answer :
Hydrogen atmos were active and in greater number
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