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Earn 100

What is an example of polymorphism in humans?

Important Questions on Evolution

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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
The survivors of original population from natural calamities might be genetically different from their ancestors. This kind of evolutionary force is known as
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
The peppered moths are found in two distinct forms. One form is dark-coloured and the other is light-coloured. The moths rest on the tree trunks. The light-coloured tree-trunks in an area were darkened by pollution. What would happen to the numbers of the two forms of the peppered moths in that area?
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
Match the following:
  List -I   List -II
(A) Founder effect (I) Long necked giraffes
(B) Bottleneck effect (II) Heterozygous for sickle cell anaemia
(C) Genetic load (III) Pitcairn Island human population
(D) Directional selection (IV) Polydactylic dwarf individuals
    (V) Sunflower population in California

The correct answer is

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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
Arresting flower development in wild cabbage results in
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
If two species live in different habitats and cannot interbreed, it is called
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
Related species which are reproductively isolated but morphologically similar are called
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
"A brief reduction in size of a population due to natural calamities usually leads to random genetic drift." For this statement, identify the correct example from the following:
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
Broccoli has been developed from_____cabbage through artificial selection. (Wild/ cultivated)
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
Reproductive isolation in sympatric speciation develops without a
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
Gene flow refers to
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
Which of the following is a post–mating factor causing reproductive isolation?
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
Allopatric speciation is caused by
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
Reproductive isolation is
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
An isolated population of humans with approximately equal numbers of blue-eyed and brown-eyed individuals was decimated by an earthquake. Only a few brown-eyed people remained to form the next generation. This kind of change in the gene pool is called a:
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
_____ drift is most effective in small populations of organisms.
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
Identify the wrong statement.
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
Select the odd one out.
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution

Broccoli has evolved from _____ by the process of artificial selection.

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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
Broccoli has evolved from _____ by the process of artificial selection.
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Biology>Genetics and Evolution>Evolution>Mechanism of Evolution
Which of the following is related to reproductive isolation?