wk 12 assignment 2

Protein electrophoresis gels can be used to distinguish which of the following?

Alternative alleles of genes encoding enzymes

Which of the following are findings of the 1000 Genomes Project?

An average of about 24 to 30 alleles associated with known inherited disorders per individual Substantial differences in the amount of variation in different parts of the genome A large number of SNPs among the different individuals (about 14 million)

Which of the following accurately describes the rates of variation in different parts of the human genome, as determined by the 1000 Genomes Project?

Certain parts of the human genome contain more variation than others.

Which of the following processes can be used to identify alternate forms of enzyme encoding genes?

Electrophoresis

Based on genome sequencing, what is the level of variation in the genomes of fruit flies in natural populations?

Fruit fly genomes have extensive variation.

Evolutionary change within a population can result from which of the following?

Mutations Natural selection Migration

What is population genetics?

The study of the properties of genes in populations

Select all of the following that are true about SNPs.

They are single-base differences. Several million have been noted in the human genome.

Similar to humans, fruit flies

exhibits much higher levels of variation in certain parts of their genome.

Darwin's view of evolution proposes that new species arise from

existing species.

Evolution can result from any process that changes the ______ composition of a population.

genetic

Natural populations exhibit significant phenotypic and____ variation.

genetic or genotypic

Charles Darwin referred to evolution as "descent with

modification

Charles Darwin referred to evolution as "descent with____

modification

Changes in allele frequencies within a population may result from ____ which are changes in the nucleotide sequences of an organism's DNA.

mutations

The process in which beneficial traits that are heritable become more common in successive generations is called

natural selection

Darwin proposed that the mechanism of evolution is

natural selection.

The field of biology that studies the properties of genes in populations is ____ ____

population genetics

The amount of genetic variation present in naturally occurring populations is

significant.

Single-base differences between individuals in a population are known as

single-nucleotide polymorphisms (SNPs).