Exam 19: Evolutionary Change in Populations

MATCHING Match the evolution vocabulary definition a.microevolutiom d.cline b.fitness e.balanced polymorphisms c.natural selection -two or more alleles persist in a population

All of the alleles for all the loci present in a population is called the:

Which of the following does NOT cause changes in allele frequencies?

Discuss how genetic variability is maintained through genetic polymorphism.

Mutations that may confer no apparent selective advantage in a particular environment are referred to as:

The Hardy-Weinberg principle is useful because:

MATCHING Match the evolution vocabulary definition a.microevolutiom d.cline b.fitness e.balanced polymorphisms c.natural selection -gradual change in a species phenotype and genotype frequencies through a series of geographic populations as result of an environmental gradient

MATCHING Match the evolution vocabulary definition a.microevolutiom d.cline b.fitness e.balanced polymorphisms c.natural selection -Why is the Hardy-Weinberg principle important, since genetic equilibrium seldom occurs in nature?

MATCHING Match the evolution vocabulary definition a.microevolutiom d.cline b.fitness e.balanced polymorphisms c.natural selection -generation to generation change in allele for genotype frequency

When phenotypes are favored at one extreme of a normal distribution, __________ selection occurs.

The migration of breeding individuals between populations causes a corresponding movement of alleles, which is referred to as:

What is heterozygote advantage? Provide one example of this and briefly explain.

The Hardy-Weinberg principle of genetic equilibrium tells us what to expect when a sexually reproducing population is:

If an animal population is diploid, each individual possesses:

Which of the following can produce a population of individuals with a relatively high frequency of a deleterious allele?

A population of people who have lived in the middle of the jungle for thousands of years without coming in contact with other individuals would show evidence of:

The observation by scientists that flies preferentially mate with those of similar phenotypes illustrates random mating.

In order to meet the conditions of the Hardy-Weinberg predictions, a population must:

The amount of observable variation due to the environment can be measured by comparing the number, frequency and kinds of alleles in both parents and offspring. _________

The process that decreases the number of organisms with phenotypes less fit to meet environmental challenges is: