The answer is d. :) you got this!
Answer:
E is the answer, hope it helps!
Answer C. centromere—the region that joins the two sister chromatids
Answer:
C.
Explanation:
The small population size means that the new colony may have reduced genetic variation from the original population and that variation, in this case, included the dominant allele for Huntington's disease. Genetic drift, along with natural selection, mutation, and migration, is one of the basic mechanisms of evolution. In this case, it was a chance that the settlers all carried the allele for Huntington's disease.