There are two alleles of a gene present in a population: allele A1 and allele A2, and the frequency of the A2 allele in the gene pool is 0.7. Under Hardy-Weinberg, if A2 is a fatal recessive allele, what proportion of individuals born would you expect to die of its effect?

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?