Forensic DNA Vocabulary

Regions of the DNA that vary from one person to another

• loci

• DNA polymorphism

• primers

• electrophoresis

This refers to having inherited different forms of a particular gene from each parent.

• heterozygous

• homozygous

• placebo

• loci

Tags

NGSS.HS-LS3-2

This refers to having inherited identical forms of a particular gene from each parent.

• heterozygous

• homozygous

• STR

• locus

This is a specific location on a chromosome.

• allele

• locus

• heterozygote

• specificus

What are variations of a gene?

• homozygous

• loci

• allele

• gene frequency

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

This is a technique to amplify (replicate) DNA.

• STR (Short Tandem Repeats)

• PCR (Polymerase Chain Reaction)

• locus

• electrophoresis

These are laboratory-made fragments of DNA that are complementary to loci that we desire to be amplified (copied).

• alleles

• genes

• primers

• heterozygotes

This is a technique for separating molecules (in this case, DNA fragments) based on their size.

• PCR (Polymerase Chain Reaction)

• STR (Short Tandem Repeats)

• electrophoresis

• exemplifying

List the 3 steps to establishing a DNA profile in order.

• denature, anneal, extend

• extract, amplify, analyze

• anneal, amplify, analyze

• analyze, extract, amplify

List the 3 steps of PCR in order.

• extract, amplify, analyze

• analyze, anneal, extend

• anneal, analyze, extend

• denature, anneal, extend