Exam 12: Processes of Evolution

Fox squirrels living in Colorado and Eastern gray squirrels living in Minnesota provide an example of what type of isolating mechanism?

In a population of rabbits, some evolve the ability to outrun foxes. This is an example of ____ selection.

____ will bestow an advantage to the individual.

A trait with two forms is referred to as

In the universal ABO blood grouping system, there are four phenotypes: A, B, AB, and O. Various populations have different frequencies of these four phenotypes but, in most populations O is most common and AB least common. The ABO blood grouping system exemplifies

Of the following, which is the least recently formed clade?

Gene flow counters the effects of

When gene flow within a population is ended, it will most likely lead to ____ in the immediate future.

With ____ selection(s), the forms of a trait at both extremes of a range of variation are favored.

Ginko, a species of gymnosperm tree, has undergone very little change in its 270 million year evolutionary history. This is an example of evolutionary

Which is the best example of the results of a neutral mutation?

Phylogeny is most analogous to

The movement of alleles among populations is called

With ____ selection(s), the allele frequency will shift in a consistent direction.

Nondisjunction of chromosomes during meiosis can lead to

What event enabled the rats to become resistant to warfarin?

A female horse can mate with a male donkey but they will produce a mule that is sterile. This is an example of what type of isolation mechanism?

With the extinction of the dinosaurs 65 million years ago, multiple niches that the dinosaurs once filled opened up and allowed mammals the opportunity to evolve and exploit those niches. In other words, mammals underwent a(an)

Traits with more than 2 distinct forms are