Exam 2: Biology, Genetics, and Evolution

Despite the usefulness of a large brain in a cultural environment,the size of the human brain has not increased significantly for the last 200,000 years.This is an example of:

Which of the following statements about mutation is correct?

All of the following are characteristics of scientific thought regarding the theory of evolution except:

To say that the allele for type A blood is dominant to that of type O means an individual whose blood type genes are heterozygous,with one A and one O allele,will have what type of blood?

Carolus Linnaeus based his classificatory system on body structure and function.

Natural selection is often thought of as "survival of the fittest," a phrase coined and used by Darwin.

Why is an understanding of the mechanics of heredity important to an understanding of how evolution works?

Describe how humans are classified taxonomically.

What do mitosis and meiosis have to do with growing and maintaining good health?

All of the following are part of the theory of natural selection except:

Gene flow always occurs between populations of related organisms.

Even two unrelated genetic sequences will be 25 percent identical.

Punctuated equilibrium is a sustained directional shift in a population's average characteristics.

The hand of a human and the wing of a bat are__________________structures,while the wings of birds and butterflies are structures.

Understanding how evolution works requires an understanding of the mechanics of heredity,because heritable variation constitutes the raw material for evolution.Describe the molecular level of the mechanics of heredity.

Which of the following situations is likely to result in genetic drift?

Compare and contrast microevolution and macroevolution.How do these work together?