CH.14 Quiz

The collection of _____ in a population constitutes that population's gene pool.

The proportion of alleles present in a gene pool is called the _____ and is an important tool in measuring evolutionary changes.

In a population of 75 mice, what would be the size of their gene pool for a particular gene?

In a population of 100 mice, if the recessive allele frequency is 0.25, how many copies of the recessive alleles are found in the population?

Which of these does NOT influence allele frequencies in a population?

Inbreeding can lead to a decrease in genetic diversity and _____.

Which of these is NOT an example of adaptive evolution?

Darwin's finches came from a mainland species where some individuals were able to move to the islands and then spread from one island to another. Is the genetic diversity of the new population of finches on the Galápagos increased or decreased in relation to the population on the mainland, and what is this an example of?

You examine a population and note that its allele frequencies for a particular gene are p = 0.55 and q = 0.45. If you came back and examined the population after several generations and found that the values for p and q had not changed, which statement would be FALSE for this gene?

If you examine a population for a particular gene where B represents the dominant allele and b represents the recessive allele, you find that the allele frequencies for this gene are p = 0.3 and q = 0.7. If this population is not evolving, what would be the frequency of the heterozygous genotype?

Which scenario would represent a situation that reduces the effect of genetic drift?

If you examine the gene pool of a population that is evolving due to genetic drift, what do you predict will occur with the allele frequencies?

Which condition can lead to two populations becoming different species?

The offspring produced between the mating of a tiger and a lion (called a liger) which is unable to reproduce, is an example of which form of reproductive isolation?

Which statement indicates that the different finch populations found throughout the Galápagos Islands have experienced speciation?

Which statement is false?

All of Darwin's finches came from a single species with a "normal" beak. Which factor can explain the development of the variety of beaks seen in these finches today?