Blog

Based on how “rare” is defined, a species could be considered common if, and only if, it had a high population size, large geographic range, and occurred in broad range of habitats.

Which one of the following statements about random genetic drift is incorrect?

Stabilizing selection favors ________, while diversifying selection favors ______________.

The percentage of individuals exhibiting a recessive disease in a Hardy Weinberg population is 0.04, which is 4%. Based on a Hardy Weinberg equilibrium, what percentage of individuals would be expected to be heterozygous carriers?

Match the type of nonrandom mating (i, ii, or iii) with the appropriate description (a, b, or c). i) inbreedingii) assortativeiii) disassortative   a)  preferential mating of similar phenotypesb)  preferential mating of dissimilar phenotypesc)  preferential mating of genetically related individuals  

The figure shows three mouse populations and their associated changes in the frequency of B, the allele for dark fur. The recessive b allele codes for white fur. After 20 generations, in which population would you be most likely to encounter a white mouse?

Fitness is a measure of reproductive success. If an individual with genotype BB produces 6 offspring, and a heterozygous individual (Bb) produces 10 offspring, and a third individual with genotype bb produces 5 offspring, what is the fitness value for the individual with BB genotype?

The percentage of individuals exhibiting a recessive disease in a Hardy Weinberg population is 0.04, which is 4%. Based on a Hardy Weinberg equilibrium, what percentage of individuals would be expected to be heterozygous carriers?

Stabilizing selection favors ________, while diversifying selection favors ______________.

The rate of diffusion of a molecule across a membrane is determined by which of the following characteristics of the diffusing molecule ?