This would be probably true if the assumption that all possible genotypic variations would be equally distributed (so we would have 25% HH, 25% hh and 2x 25 Hh). If this distribution would be true and Huntingtons disease really was a single gene dominant trait diesase, then yes, we could expect such a distribution in the population.
<span>The answer is A. rock ages. B and C are common for topographic maps, and D is common on all maps. But only geologic maps show rock ages.
Hope this helped :)</span>
