Author: Anonymous

Cutting DNA with a particular restriction enzyme produces DNA fragments that can be separated by ________.   A) gel electrophoresis B) enzymes C) recombinant DNA D) plasmids

You are attempting to link an individual to a crime. The only evidence you have is a tiny drop of blood. How can you use this drop of blood to definitively make the association?   A) You can use the sample to determine the individual’s blood type. B) You can use gel electrophoresis to determine the length of the DNA found in the sample. C) You can use PCR to increase the amount of DNA available for STR analysis. D) You can use the sample to check for the presence of the Rhesus factor.

Gene flow is accomplished by ________.   A) migration B) sexual recombination C) mutation D) natural selection

“Sticky ends” are produced as a result of the action of ________.   A) PCR B) DNA ligase C) restriction enzymes D) bacterial plasmids

Which of the following is a population?   A) the termites infesting your house along with the microorganisms living in their guts B) all of the termites that have ever lived C) all organisms living in your house D) the termites infesting your house

Translation converts the information stored in ________ to ________.   A) DNA… RNA B) RNA… a polypeptide C) DNA… a polypeptide D) RNA… DNA

Gel electrophoresis separates DNA fragments on the basis of differences in their ________.   A) A:C ratio B) length C) G:T ratio D) pH

STR analysis is a DNA profiling technique that makes use of the fact that different people have ________.   A) different numbers of repeats of short DNA sequences at certain sites in the genome B) different alleles for many genes in the genome C) different restriction fragments D) different CODIS DNA sequences

The total collection of alleles in a population at any one time makes up that population’s ________.   A) gene pool B) genotype C) heterozygote frequency D) allele frequency

Genetic drift is the result of ________.   A) natural selection B) chance C) a large gene pool D) environmental variation