Exam 7: Evolution the Theory and Its Supporting Evidence

According to Mendel's work on inheritance, a flower with "Aa" alleles, where "A" is dominant over "a" and "A" is red and "a" is white, will be ____.

Changes that occur in genes and are then passed from one generation to another are called ____________________.

Traits like eye color are controlled by ____________________, the basic unit of inheritance.

The binomial species name is composed of the ____ name first, followed by the ____ name.

Explain why critics did not readily accept the Darwin-Wallace theory of natural selection.

_____ structures probably indicate descent from a common ancestor with modifications for different functions.

Members of a clade can have different derived and primitive characteristics.

What has occurred when organisms of one species develop a resistance to pesticides?

Allopatric speciation occurs when organisms inherit two different alleles.

The development of similar characteristics in distantly related organisms is called ____.

The fossil record reveals that present-day organisms are better adapted to their environments than ancient organisms were adapted to their environments.

Most of the organisms that have ever existed are now extinct.

The theory of genetics was initially developed by studying ____.

Divergent evolution results in descendants with characteristics that are very similar to their ancestors' characteristics.

Allopatric speciation is most likely to occur after a(n) ____.

A bat's wing and a bird's wing are examples of analogous structures.

The fossil record contains a sequence from simple to more complex organisms through time.

Growth and development by mitosis results in progeny that are genetically identical to the parent cell.

Variation is always present in populations because ____.

When animal breeders select desirable traits and breed animals with these traits, they are practicing artificial selection.