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Mayank1444
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Answer to: Which one of the following is not a living fossil? (1) Peripatus (2) Sphenodon (3) King crab (4) Archaeopteryx

Correct answer: (4) Archaeopteryx

4 years ago
Forum
Biology
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Answer to: When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed

Correct answer: (1) convergent evolution

4 years ago
Forum
Biology
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Answer to: Which one of the following experiments suggests that simplest living organisms could not have originated spontaneously from nonliving matter?

Correct answer: (3) Meat was not spoiled, when heated and kept sealed in a vessel.

4 years ago
Forum
Biology
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Answer to: Which one of the following phenomena supports Darwin’s concept of natural selection in organic evolution?

Correct answer: (1) Prevalence of pesticide-resistant insects

4 years ago
Forum
Biology
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Answer to: Using imprints from a plate with complete medium and carrying bacterial colonies, you can select streptomycin-resistant mutants and prove that such mutations do not originate as adaptation. These imprints need to be used

Correct answer: (1) only on plates with streptomycin

4 years ago
Forum
Biology
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Answer to: de Vries gave his mutation theory on organic evolution while working on

Correct answer: (1) Oenothera lamarckiana

4 years ago
Forum
Biology
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Answer to: Which one of the following amino-acid was not found to be synthesized in Miller's experiment?

Correct answer: (4) Glutamic acid

4 years ago
Forum
Biology
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Answer to: Age of fossils in the past was generally determined by radiocarbon method and other methods involving radioactive elements found in the rocks.

Correct answer: (1) electron spin resonance (ESR) and fossil DNA

4 years ago
Forum
Biology
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Answer to: According to Oparin, which one of the following was not present in the primitive atmosphere of the earth

Correct answer: (4) Oxygen

4 years ago
Forum
Biology
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Answer to: Which of the following is the relatively most accurate method for dating fossils?

Correct answer: (2) Radio-carbon method

4 years ago
Forum
Biology
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Answer to: Animals have the innate ability to escape from predation. Examples for the same are given below. Select the incorrect example.

Correct answer: (1) Poison fangs in snakes

4 years ago
Forum
Biology
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Answer to: There are two opposing views about origin of modern man. According to one view Homo erectus in Asia were the ancestors of modern man.

Correct answer: (2) Greater variation in Asia than in Africa

4 years ago
Forum
Biology
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Answer to: Which one of the following describes correctly the homologous structures? (1) Organs with anatomical dissimilarities, but performing same function

Correct answer: (4) Organs with anatomical similarities, but performing different functions

4 years ago
Forum
Biology
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Answer to: Darwin in his 'Natural Selection Theory' did not believe in any role of which one of the following in organic evolution?

Correct answer: (2) Discontinuous variations

4 years ago
Forum
Biology
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Answer to: Random genetic drift in a population probably results from

Correct answer: (2) small population size

4 years ago
Forum
Biology
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Answer to: Presence of gills in the tadpole of frog indicates that

Correct answer: (3) frogs evolved from gilled ancestors

4 years ago
Forum
Biology
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Answer to: What kind of evidence suggested that man is more closely related to chimpanzees than with other hominoid apes?

Correct answer: (3) Evidence from DNA extracted from sex chromosomes, autosomes and mitochondria

4 years ago
Forum
Biology
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Answer to: In recent years, DNA sequences (nucleotide sequence) of mt-DNA and Y chromosomes were considered for the study of human evolution, because

Correct answer: (1) they are uniparental in origin and do not take part in recombination

4 years ago
Forum
Biology
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Answer to: Which one of the following sequences was proposed by Darwin and Wallace for organic evolution?

Correct answer: (4) Overproduction, variations, constancy of population size, natural selection

4 years ago
Forum
Biology
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Answer to: Industrial melanism is an example of

Correct answer: (3) protective resemblance with the surroundings

4 years ago
Forum
Biology
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