GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Swine are vulnerable to infection by bird flu virus and human flu virus, which can both be present in an individual pig at the same time. When this occurs, it is possible for genes from bird flu virus and human flu virus to be combined, thereby producing a genetically distinctive virus, which can subsequently cause widespread disease. The production of new types of flu virus in the manner described above is most similar to the phenomenon of
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bottleneck effect.
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founder effect.
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natural selection.
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gene flow.
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sexual selection.
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Explanation:
Detailed explanation-1: -Gene flow is the movement of genes into or out of a population. Such movement may be due to migration of individual organisms that reproduce in their new populations, or to the movement of gametes (e.g., as a consequence of pollen transfer among plants).
Detailed explanation-2: -Which statement correctly describes the role of chance in evolution? The ultimate source of new alleles is mutation, random changes in the nucleotide sequences of an organism’s DNA.
There is 1 question to complete.