A newspaper story on AIDS reports that an allele (R) confers complete resistance to HIV when homozygous and that 2% of the human population is resistant (RR). The story also states that 18% of the population carries one copy of the resitance allele (ie heterozygous). Is this a guess, an approximation, or an exact frequency assuming that the population is at Hardy-Weinberg equlibrium?
Show your calculations indicating the values of p and q. Please and thank you.