Forensics Ch. 7 DNA Test

This molecule helps us "see" the DNA fragments.

• probe

• restriction enzyme

• allele

• PCR

What is the purpose of polymerase chain reaction (PCR)?

• To separate fragments of DNA

• To amplify the amount of DNA that is available for testing

• To cut DNA into small fragments

• To extract DNA from a source

What process is used to separate fragments of DNA?

• Restriction mapping

• Polymerase chain reaction

• Sanger sequencing

• Gel electrophoresis

What charge is applied to the end of a gel during gel electrophoresis?

• Positive

• Negative

• Neutral

What size DNA fragments travel through the gel the fastest?

• Larger fragments

• Smaller fragments

• Medium-sized fragments

A short nucleotide sequence that is repeated a different number of times in different individuals is called a _____.

• microRNA

• VNTR

• Gene

• Intron

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

DNA Profiling is

• finding a unique characteristics in a persons DNA

• Signing up for DNA profiling website

• Used to collect evidence from crime scenes

• not used in forensics

A karyotype shows

• all 46 pairs of chromosomes for humans

• all 23 pairs of chromosomes for humans

• restriction fragments

• restriction enzymes

A technique used to identify a person based on analysis of their genetic code.

• DNA Fingerprinting

• SNP

• CODIS

• PCR

sequence of repeating bases in the non-coding regions of DNA that are used in DNA profiling

• STR (Short Tandem Repeat)

• PCR (Polymerase Chain Reaction)

• VNTR (Variable number of Tandem Repeats)