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A random change in the frequency of alleles in any population over several generations due to errors in the gametes is called?
- a)Gene flow
- b)Genetic Drift
- c)Genetic error
- d)Genetic crash
Correct answer is option 'B'. Can you explain this answer?
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A random change in the frequency of alleles in any population over sev...
Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance (sampling error)Genetic drift occurs in all populations of non-infinite size, but its effects are strongest in small populations.Genetic drift may result in the loss of some alleles (including beneficial ones) and the fixation, or rise to 100\0% frequency, of other alleles.Genetic drift can have major effects when a population is sharply reduced in size by a natural disaster (bottleneck effect) or when a small group splits off from the main population to found a colony (founder effect).
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A random change in the frequency of alleles in any population over sev...
Genetic Drift
- Genetic drift is a random change in the frequency of alleles in a population over several generations. It occurs due to random errors or chance events in the production of gametes (eggs and sperm).
- It is an evolutionary mechanism that can lead to changes in the genetic composition of a population.
- Genetic drift is more pronounced in small populations where chance events can have a greater impact on allele frequencies.
- There are two main types of genetic drift: bottleneck effect and founder effect.
- Bottleneck effect occurs when a population experiences a drastic reduction in size, leading to a loss of genetic variation.
- Founder effect occurs when a small group of individuals establish a new population, resulting in a limited gene pool.
- Genetic drift can lead to the fixation of certain alleles, where the frequency of one allele becomes 100% in the population, while other alleles may be lost.
- This random change in allele frequencies can have long-term effects on the genetic diversity and adaptability of a population.
- In contrast to genetic drift, gene flow refers to the transfer of genetic material from one population to another through migration or interbreeding.
- Genetic error and genetic crash are not accurate terms to describe the random change in allele frequencies in a population.
- Genetic drift is a random change in the frequency of alleles in a population over several generations. It occurs due to random errors or chance events in the production of gametes (eggs and sperm).
- It is an evolutionary mechanism that can lead to changes in the genetic composition of a population.
- Genetic drift is more pronounced in small populations where chance events can have a greater impact on allele frequencies.
- There are two main types of genetic drift: bottleneck effect and founder effect.
- Bottleneck effect occurs when a population experiences a drastic reduction in size, leading to a loss of genetic variation.
- Founder effect occurs when a small group of individuals establish a new population, resulting in a limited gene pool.
- Genetic drift can lead to the fixation of certain alleles, where the frequency of one allele becomes 100% in the population, while other alleles may be lost.
- This random change in allele frequencies can have long-term effects on the genetic diversity and adaptability of a population.
- In contrast to genetic drift, gene flow refers to the transfer of genetic material from one population to another through migration or interbreeding.
- Genetic error and genetic crash are not accurate terms to describe the random change in allele frequencies in a population.
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A random change in the frequency of alleles in any population over several generations due to errors in the gametes is called?a)Gene flowb)Genetic Driftc)Genetic errord)Genetic crashCorrect answer is option 'B'. Can you explain this answer?
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