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Question
A and B were organisms which belonged to the same species. After generations, due to certain factors, their descendants were not able to interbreed. What could be the possible reasons?
A and B were organisms which belonged to the same species. After generations, due to certain factors, their descendants were not able to interbreed. What could be the possible reasons?
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Solution
The correct options are
A Severe DNA changes
B Variations
C Geographical isolation
D Behavioral Isolation
- Speciation is the process by which populations evolve to become new and distinct species. This can happen due to geographical and reproductive isolation.
- Geographic Isolation occurs when two populations of the same species are divided by some physical barrier, due to which they get separated.
- To adapt to new conditions there are variations and severe DNA changes in A and B respectively due to which they become distinct.
- Now, when they come in contact with each other they fail to recognise each other (behavioral isolation) and become reproductively isolated.
A Severe DNA changes
B Variations
C Geographical isolation
D Behavioral Isolation
- Speciation is the process by which populations evolve to become new and distinct species. This can happen due to geographical and reproductive isolation.
- Geographic Isolation occurs when two populations of the same species are divided by some physical barrier, due to which they get separated.
- To adapt to new conditions there are variations and severe DNA changes in A and B respectively due to which they become distinct.
- Now, when they come in contact with each other they fail to recognise each other (behavioral isolation) and become reproductively isolated.
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