STR's & PCR

What does STR stand for?

• simple transfer rods

• short tandem repeats

• short term reflex

What does PCR stand for?

• Polymer Central Recheck

• Protein Chain Report

• Polymerase Chain Reaction

What is an STR?

• Regulated cell division

• Hereditary molecules passed from parent to offspring

• sections of a chromosome in which DNA sequences are repeated

Tags

NGSS.HS-LS3-2

What is a PCR used for?

• Replicate and amplify a specific DNA segment

• Making an identical copy of a DNA molecule

• Cell division

How are STR's used in forensic analysis?

• Can exclude suspects, but not fully identify one

• Can fully identify a suspect

• Cannot be used in forensic analysis

How do STR's relate to the uniqueness of an individual's genome?

• Produces two copies of an original DNA molecule

• Helps determine the specific DNA of an organism

• They are able to read the DNA

How are PCR's used to generate DNA evidence in a forensic analysis?

• Not used to generate DNA evidence

• Allows DNA replication to occur only once

• Allows DNA replication to occur many times

What are primers?

• Short segments of DNA

• Used to change DNA

• Long segments of DNA

What are the purpose of primers?

• Copies DNA

• Unwinds strands of DNA

• Guides DNA polymerase to the section of DNA to copy

Which of the following is not a function of a PCR?

• Heating

• DNA replication

• Strand separation

• All of the following are functions of PCR