Forensic DNA

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

• alleles

• genes

• primers

• heterozygotes

How do scientists cut DNA into smaller strands?

• restriction enzymes

• scissors

• ligase

• agarose

Biologists need additional copies of a DNA fragment. What tool should they use?

• Gel Electrophoresis

• PCR

• Restriction enzymes

• This isn't possible

What is the main reason for packaging items suspected of containing DNA evidence in paper bags instead of plastic?

• Plastic bags are not readily available at crime scenes

• Paper bags are easier to handle

• Plastic retains moisture which can destroy DNA evidence

• Paper bags are cheaper

Tags

SFS3

What are some sources of DNA that can be found in a crime scene?

• Sweat and dandruff

• Saliva and mucus

• All of the above

• Ear wax and blood

Tags

SFS3

DNA can be used for ...

• determining paternity

• identifying human remains

• identifying a suspect

• All of these

Tags

SFS3

Which suspect's DNA matches the DNA left at the crime scene?

• Suspect 1

• Suspect 2

• Suspect 3

• All are excluded

Tags

SFS3

This process uses short repeating sections of DNA to identify an individual.

• Gel Electrophoresis

• PCR

• STR Analysis

• RFLP Analysis

Which male is the father of this child?

• Male 1

• Male 2

• Neither could be the father

• Either could be the father

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Who can be included as source of paternal DNA for this child?

• male #1

• male #2

• neither male

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2