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Which of the following is the first step...

Which of the following is the first step in allopatric speciation ?

A

Goegraphic isolation

B

Hybridisation

C

Genetic drift

D

Polyploidy

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The correct Answer is:
A
It allopatric speciation (Allos-other, patria-native land) a part of the population becomes geographically isolated from the main population . The population becomes entirely separated and finally constitutes a new species
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  2. In population of 1000 individuals 360 belongs to aa. Based on this dat...

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  3. Which of the following is the first step in allopatric speciation ?

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  4. Variation in gene frequencies within populations can occur by chance r...

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  5. The tendency of population to remain in genetic equilibrium may be dis...

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  6. Which of the following species are restricted to an area??

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  7. Population are said to be allopathic when

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  8. Biological concept of species is mainly based on

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  9. The process by which organisms with different evolutionary history evo...

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  10. Species is a

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  11. Read the following statements and select the correct option A. Incre...

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  12. Related species which are reproductively isolated but morphologically ...

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  13. Single step large mutation leading to speciation is also called

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  14. In the case of peppered moth (Biston betularia) the black-coloured fro...

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  15. Hardy-Weinberg equilibrium is known to be affected by gene flow, genet...

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  16. Change of frequency of alleles in a population results in evolution is...

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  17. Which of the following defines Hardy-Weinberg's law?

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  18. Industrial melanism as observed in peppered moth proves that the

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  19. The most likely reason for the development of resistance against pesti...

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  20. In a Mendelian population, the sum total of genes of all the individua...

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