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In sympatric speciation...

In sympatric speciation

A

Part of the population becomes geographically isolates from main population

B

small segment of the original population becomes isolated reproductively

C

migration of members of a species from one to other population takes place

D

hybridization occurs

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The correct Answer is:
B
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Sympatric speciation is caused by

[A]: The process of speciation occurs in allopatric populations. [R]: The sympatric species can arise either due to changes in the chromosome number or due to introgressive hybridization and polyploidy.

Allopatric speciation is caused by

Allopatric speciation is due to

Allopatric speciation is due to

Closely related, morphologically similar reproductively isolated sympatric populations are designated as

Which is most important for speciation ?

Instant speciation can occur by

[A] : Allopatric species are geographically isolated whereas sympatric species coexist . [R] : Allopatric species can be accepted as separate species unless they pass the test of sympatry.

Reason of fast speciation in present day crop plant is :

TRUEMAN BIOLOGY-EVOLUTION-MULTIPLE CHOICE QUESTIONS
  1. Mule is a hybrid, which of the following statements is correct?

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  2. A species is a collection of demes. The deme is a group of

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  3. In sympatric speciation

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  4. Allopatric speciation is due to

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  5. Survival of Fittest' was coined by

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  6. Light coloured Peppered Moth/Biston betularia gets changed to its dark...

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  7. Closely related, morphologically similar reproductively isolated sympa...

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  8. The presence of vestigial organs in man supports :

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  9. Animals living in colder region have shorter tail and ears as compared...

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  10. Which one of the following scientists is not related with organic evol...

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  11. Who gave the 'Theory of pangenesis' Or Who is related with 'Galapa...

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  12. Who wrote the book 'Genetics and Origin of Species' ?

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  13. The theory which explains the origin of life and is based upon experim...

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  14. Darwin's finches show one of the following aspects of evolution. 1. Bi...

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  15. The age of evolution of man is measured by

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  16. Wallace's line passes between

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  17. The origin of angiosperm took place during

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  18. Mutation cannot explain

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  19. Tasmanian wolf is a marsupial while wolf is a placental mammal. This s...

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  20. In which condition the gene ratio remains constant for any species ?

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