Blog

What is illustrated by the amino acid sequence of the p53 protein in the figure below?

A plot of population size vs time that displays a J-shape is indicative of

Which cause of habitat destruction is fastest-growing and most destructive?

The process by which soil bacteria convert NH3 or NH4 to nitrate (NO3-) is called

GGG and GGC are codons for the amino acid, glycine. A mutation caused the insertion of a cytosine in place of the third guanine during DNA replication. Over many generations the DNA changes so that the frequency of GGC is similar to that of GGG. What effect does this mutation have on the population’s mean fitness?

A tropical deciduous forest, a hot desert, and the tundra are examples of

During the breakdown of glucose, which of the following pathways does not occur in the mitochondrion?

A behavior that benefits others at a cost to oneself is known as

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?

What kind of molecular information is commonly used to study phylogeny among species that diverged from a common ancestor relatively long ago?