Multiple choice

Frequency of a gene in a population will increase if the gene is

  1. lethal

  2. dominant

  3. recessive

  4. favourably selected
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

According to the principles of natural selection, alleles that provide a fitness advantage to the organism in a given environment are more likely to be passed on to the next generation, thus increasing their frequency in the population.

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