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Question
In a small group of people living in a remote area, there is a high incidence of 'blue skin', a condition that results from a variation in the structure of haemoglobin. All of the blue skinned residents can trace their ancestry to one couple, who were among the original settlers of this region. The unusually high frequency of blue skin in the area is an example of ?
In a small group of people living in a remote area, there is a high incidence of 'blue skin', a condition that results from a variation in the structure of haemoglobin. All of the blue skinned residents can trace their ancestry to one couple, who were among the original settlers of this region. The unusually high frequency of blue skin in the area is an example of ?
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Solution
The correct option is B Genetic drift
The couple with blue skin gene separated from the original population in another remote area giving rise to a new population. This is founder's effect type of genetic drift where a small population may exhibit high or low frequency for a particular gene or genes distinct from the original population.As they carry only a specific set of genes from the gene pool of the original population.So, the correct answer is 'Genetic drift'
The couple with blue skin gene separated from the original population in another remote area giving rise to a new population. This is founder's effect type of genetic drift where a small population may exhibit high or low frequency for a particular gene or genes distinct from the original population.
As they carry only a specific set of genes from the gene pool of the original population.
So, the correct answer is 'Genetic drift'
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