Finding of Miller’s experiment on origin of life has provided evidence for the
Options
(a) theory of special creation (b) theory of organic evolution (c) theory of biogenesis (d) theory of abiogenesis
Correct […]
H. M. S. Beagle is associated with which scientist?
Options
(a) Darwin (b) Lamarck (c) Wallace (d) Columbus
Correct Answer:
Darwin
Explanation:
No explanation available. Be the first to write the explanation for […]
According to one of the most widely accepted theory, earth’s atmosphere before origin of life consisted of a mixture of
Options
(a) O₃, CH₄, O₂ and H₂O (b) O₂, NH₃, CH₄ and H₂O […]
Closely related species living in the same area/habitat are called as
Options
(a) allopatric (b) sympatric (c) allochoronic (d) siblings
Correct Answer:
sympatric
Explanation:
No explanation available. Be the first to write the […]
Every cell of the body contributes gemmules to the germ cells and so shares in the transmission of inherited characters. This theory is known as
Options
(a) theory of inheritance of acquired characteristics […]
Giraffe has long neck, this can be attributed to
Options
(a) natural selection (b) inheritance of acquired character (c) isolation (d) none of these
Correct Answer:
inheritance of acquired character
Explanation:
No explanation […]
A good example for recapitulation theory is
Options
(a) canine teeth of dog (b) placenta of mammals (c) tadpole larva of frog (d) embryonic membranes of reptiles
Correct Answer:
tadpole larva of frog
Biological concept of species is mainly based on
Options
(a) reproductive isolation (b) morphological features only (c) methods of reproduction only (d) morphology and methods of reproduction
Correct Answer:
reproductive isolation
Explanation:
No […]
Genetic variation arises by
Options
(a) recombination (b) nucleolus (c) mutation (d) both recombination and mutation
Correct Answer:
both recombination and mutation
Explanation:
No explanation available. Be the first to write the explanation […]
A baby has been born with a small tail. It is a case exhibiting
Options
(a) retrogressive evolution (b) mutation (c) atavism (d) metamorphosis
Correct Answer:
atavism
Explanation:
No explanation available. Be the […]
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