Forensic Chapter 7 DNA Profiling

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.

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

• electrophoresis

• 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%

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

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Which man is the father of this baby?

• Father 1
• Father 2
• Father 3
• None of them

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Why do the fragments of DNA in gel electrophoresis travel away from the negative electrode?

• DNA is negatively charged so attracted to the positive end of the unit
• DNA is positively charged to attracted to the negative end of the unit
• the agarose gel in negatively charged
• the agarose gel is positively charged

What is DNA profiling?

• The analysis of DNA to identify individuals

• Tracking a suspect's location using satellites

• Collecting all evidence at a crime scene

• Burying dead people

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DNA fingerprinting can be used to

• determine the age of a suspect

• determine the identity of human remains

• determine the general health of a suspect

• determine the height and weight of an unknown suspect

Which structure of the DNA nucleotide is the genetic code?

• nitrogen base pairs

• deoxyribose sugar

• phosphate

• hydrogen bonds

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