171.
Greatest advantage of bipedal movement A
Fore arms becoming free for carrying out order of brain
B
Greater speed
C
Support the body properly
D
Loss of weight
Answer :
Fore arms becoming free for carrying out order of brain
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172.
Darwin's Theory of Natural Selection was based on A
Inheritance of acquired characters
B
Mutation
C
Enormous rate of reproduction in organisms. struggle for existence and survival of the fittest
D
Changes due to the use and disuse of organ
Answer :
Enormous rate of reproduction in organisms. struggle for existence and survival of the fittest
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173.
The eye of octopus and eye of cat show different patterns of structure, yet they perform similar function. This is an example of: A
Homologous organs that have evolved due to divergent evolution
B
Analogous organs that have evolved due to convergent evolution
C
Analogous organs that have evolved due to divergent evolution
D
Homologous organs that have evolved due to convergent evolution
Answer :
Analogous organs that have evolved due to convergent evolution
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174.
The prehistori man who lives on earth during late Pleistocene period A
Neanderthal man
B
Australopithecus
C
Java man
D
Atlantic man
Answer :
Neanderthal man
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175.
Stanley Miller synthesized in his experiment A
Virus
B
Protein
C
Amino acid
D
Cell
Answer :
Amino acid
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176.
Convergent evolution is illustrated by A
dogfish and whale
B
rat and dog
C
bacterium and protozoan
D
starfish and cuttle fish
Answer :
dogfish and whale
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177.
Most of the natural mutations are A
Useful
B
Harmful
C
Neutral or harmful
D
Semilethal
Answer :
Harmful
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178.
Which of the following is correct order of evolutionary history of man? A
Peking man, Homo sapiens, Neanderthal, Cro-magnon
B
Peking, Neanderthal, Homo sapiens, Cro- magnon
C
Peking man, Heidelberg man, Neanderthal, Cro-magnon
D
Peking man, Neanderthel, Homo sapiens, Heidelberg man
Answer :
Peking man, Heidelberg man, Neanderthal, Cro-magnon
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179.
A gene locus has two alleles $$A, a.$$ If the frequency of dominant allele $$A$$ is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population ? A
$$0.36 (AA); 0.48 (Aa); 0.16 (aa)$$
B
$$0.16 (AA); 0.24 (Aa); 0.36 (aa)$$
C
$$0.16 (AA); 0.48 (Aa); 0.36 (aa)$$
D
$$0.16 (AA); 0.36 (Aa); 0.48 (aa)$$
Answer :
$$0.16 (AA); 0.48 (Aa); 0.36 (aa)$$
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180.
Which one of the following amino-acid was not found to be synthesized in Miller's experiment? A
Aspartic acid
B
Glutamic acid
C
Alanine
D
Glycine
Answer :
Glutamic acid
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