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What is genetic drift? (2015)

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Question: What is genetic drift? (2015)

Options:

  1. Change in allele frequencies due to chance
  2. Natural selection acting on a population
  3. Migration of individuals into a population
  4. Mutation of genes

Correct Answer: Change in allele frequencies due to chance

Exam Year: 2015

Solution: 

Genetic drift refers to changes in allele frequencies in a population due to random sampling of organisms, which can lead to significant changes over time, especially in small populations.

What is genetic drift? (2015)

Practice Questions

Q1
What is genetic drift? (2015)
  1. Change in allele frequencies due to chance
  2. Natural selection acting on a population
  3. Migration of individuals into a population
  4. Mutation of genes

Questions & Step-by-Step Solutions

What is genetic drift? (2015)
  • Step 1: Understand that a population is a group of organisms of the same species living in the same area.
  • Step 2: Know that alleles are different versions of a gene that can exist in a population.
  • Step 3: Realize that genetic drift happens when some alleles become more or less common in a population by chance.
  • Step 4: Recognize that this random change can have a bigger effect in small populations than in large ones.
  • Step 5: Understand that over time, genetic drift can lead to significant changes in the genetic makeup of a population.
  • Genetic Drift – Genetic drift is the process by which allele frequencies in a population change due to random sampling effects, particularly pronounced in small populations.
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