Scientists estimate that whaling activity in the nineteenth and early twentieth centuries reduced the number of adult female southern right whales to as few as 60 by 1920. This is an example of A. The bottleneck effect
B. The founder effect
C. Gene flow
D. Sexual selection

Brepresent the dominant allele for brown fur, and b represents the allele for white fur. if two rabbits with the genotype bb reproduce, what are the possible phenotypes for their offspring

Assume that you are interested in separating short (200-400 bp) dna molecules from a pool of longer molecules in the 10,000-20,000 nucleotide range. you have two recipes for making your polyacrylamide gels: one recipe uses 1.5 percent agarose and would be considered a “hard gel,” while the other uses 0.5 percent agarose and would be considered a loose gel. which gel should you use to separate the short (200-400 bp) dna molecules from a pool of longer molecules in the 10,000-20,000 nucleotide range?

You sample a population of butterflies and find that 56% are heterozygous at a particular locus. what should be the frequency of the recessive allele in this population?