The likelihood of an individual in a population carrying two specific alleles of a human DNA marker, each of which has a frequency of 0.2, will be
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To find the frequency of a specific heterozygous genotype carrying two alleles with frequencies \( p \) and \( q \), always use the term \( 2pq \) from the Hardy-Weinberg expansion.
For \( p = 0.2 \) and \( q = 0.2 \), the value is \( 2 \times 0.2 \times 0.2 = 0.08 \).