Exam 4: Genetics and Evolution

In what circumstances can natural selection be observed? What do these observations tell us about evolution?

Mendel's units of heredity were what we now call ____________.

Briefly summarize speciation as it relates to Darwinian evolution.

______________ is the exchange of sections of chromosomes between one chromosome and another.

______________ is a population that consists of organisms able to interbreed and produce fertile and viable offspring.

The main process that increases the frequency of adaptive traits through time is called

If the two genes, or alleles, for a trait are the same, the organism is

Natural selection proceeds ___________________.

If two genes, or alleles, for a trait are the same, the organism is ________ for the trait.

_____________ involve the application of evolutionary principles to the behavior of animals.

Darwin knew variations were transmitted through heredity, but he did not understand the mode of inheritance because

Each member of a gene pair or group is called _____________.

In the 1930s and 1940s, scientists developed a synthetic theory of evolution. What are its major characteristics and how did this approach improve on earlier ones?

Why do many people see a conflict between religion and evolution? Do you see that same conflict?

The genetic makeup of a pea plant is called its

When gene flow occurs, it's effect is the opposite of genetic drift, because

______________ is a change in the DNA sequence that can produce an altered gene.

The founder effect is interesting to study because

Charles Darwin was not the first person to discuss evolutionary processes, but he is famous because

The genes of higher organisms are located on ropelike bodies called ____________.