Exam 5: Ecological Genetics: Adaptation and Natural Selection

According to the Hardy-Weinberg principle, which of the following must be true for gene frequencies in a population to remain the same?

________ is the differential success of individuals in a population in response to environmental conditions.

Which of the following characteristics is an example of a qualitative trait?

The outward appearance of an organism for a given characteristic is called its ________.

The acquisition of ________ is probably the most fundamental constraint to life.

Explain the concept of a trade-off and suggest how this idea relates to the diversity of species we see among different habitats.

Researchers Rosemary and Peter Grant have discovered that beak size frequency of Galapagos Island medium ground finch populations varies with all the following, EXCEPT

When genetic variation occurs among subpopulations of the same species it is known as genetic ________.

Heritability is not an essential feature of natural selection.

The total collection of alleles across all individuals in a population at any one time is called the ________.

Explain how the phenomenon of antibiotic resistance in bacteria provides an excellent example of rapid evolution by natural selection.

The alternate forms of a gene are called

The specific traits of a particular organism in a given environment are called

Speciation resulting from the geographic isolation of a species is known as

If the physical expression of a heterozygous individual is intermediate between those of the homozygotes, the alleles are ________.

Why are organisms not 'perfectly' adapted to their environment?

Explain the difference between phenotypic plasticity and adaptation, and suggest how you would collect data that would distinguish between them.

Describe the two main conditions for evolution by natural selection as offered by Darwin in The Origin of Species.

A(n)________ is a measurable, gradual change over a geographic region in the average value of a trait.

According to the research of Beren Robinson, how would you expect stickleback species to differ between two lakes, one of which supports two species of stickleback and the other which has a single species?