Topic 1 Review

The process of DNA Fingerprinting is based on the fact that

• everyone has the exact same DNA.

• no 2 people, except identical twins, have exactly the same DNA as someone else.

• most genes are dominant.

• None of the other answer choices are correct.

(GAAT) (GAAT) (GAAT) (GAAT) is an example of:

• restriction fragments.

• DNA fingerprinting.

• PCR.

• STR.

The total amount of DNA in a cell, which is contained in the cell's nucleus (nuclear DNA) and mitochondria (mtDNA), is called the human:

• genome.

• gene.

• allele.

• RNA.

Which method is used to identify different STR markers?

• x-raying DNA samples

• extracting the mtDNA from the gene

• adding fluorescent dyes to the PCR reaction

• calculating the allele frequency

What material is used to isolate and cut DNA?

• separating enzymes

• restriction enzymes

• PCR

• base pairs

Name a method of separating molecules, such as DNA, based on their size

• electrophoresis

• restriction enzymes

• STR

• PCR

Amplifying trace samples of DNA is called

• introns

• restriction enzymes

• STR

• PCR

If guanine makes up 19% of the nucleotides in a sample of DNA from an organism, then cytosine would make up _____ percent of the bases.

• 19%

• 62%

• 31%

• 38%

Based on these results whose blood was found in the blood stain at the crime scene?

• Bob
• Sue
• John
• Lisa

Which two bear species are most closely related?

• Bear 1 and Bear 2
• Bear 1 and Bear 3
• Bear 2 and Bear 3
• There’s no way to tell