Question

In humans, there is a dominant allele L that codes for lactase persistence, the ability to make high levels of lactase enzyme as an adult. People with homozygous recessive ll genotypes have lactase non-persistence or hypolactasia, which means that they make low amounts of lactase enzyme as adults. In 1970, scientists examined the alleles of all of the inhabitants of an isolated island called Freedonia. In 1970, scientists determined that the value of p was 0.2 and the value of q was 0.8. Scientists returned to Freedonia in 2020 and determined that 70% of the population had a lactase persistence phenotype. Did this population remain at a Hardy-Weinberg equilibrium? Justify your reasoning.

Answer 1

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