Question

5.1 - evolution, speciation and extinction vocabulary
this section focuses on key vocabulary from unit 5.1, including evolution, speciation and extinction.
5
multiple choice 1 point
when random events cause certain alleles to become more or less common in a population, it is known as:
artificial selection
genetic drift
natural selection
adaptation

Explanation:

• Artificial selection: Humans deliberately select traits (not random events).
• Genetic drift: Random changes in allele frequencies (matches the description).
• Natural selection: Based on fitness (not random events).
• Adaptation: A trait that helps survival (not the process described).

Answer:

B. Genetic drift