Forensic Serology & DNA

Which type of blood stain is shown

• Passive blood drop

• Transfer pattern

• Impact spatter

• Void

Put the steps for performing a gel electrophoresis on DNA in order.

I. Cut the DNA with a microknife.

II. Run electricity through the gel.

III. Load the DNA into the wells of the gel.

IV. Amplify the DNA using PCR.

V. Cut the DNA with restriction enzymes.

VI. Read the bands.

• I, IV, III, and then II

• V, IV, III, II, and then VI

• V, III, II, and then VI

• II, III, and then IV

PCR means

• ployploidal chromosome regions

• polymerase chain reaction

• polymerase constriction ribosome

• plasticized corpse reagents

CODIS, the database that the FBI uses to store DNA profiles, uses what kind of DNA fingerprinting?

• Genome sequencing

• RFLP - restriction fragment length polymorphism

• STR - short tandem repeats

• PCR Amplification

For what is PCR used?

• Amplifying small samples of DNA by copying it over and over again.

• Cutting DNA into fragments

• Separating DNA fragments by size

• Sequencing a person's genome

For what is gel electrophoresis used?

• Amplifying small samples of DNA by copying it over and over again.

• Cutting DNA into fragments

• Separating DNA fragments by size

• Sequencing a person's genome

For what are restriction enzymes used?

• Amplifying small samples of DNA by copying it over and over again.

• Cutting DNA into fragments

• Separating DNA fragments by size

• Sequencing a person's genome

Who is the father?

• Male 1

• Male 2

• Neither Male

• Both Males (if you choose this answer, you need to see your teacher for more information about human sexual reproduction)

Given the electropherogram shown, a graph of alleles (different versions of genes on DNA), is the suspect guilty of this crime?

• Yes

• No

• There is not enough information to draw a conclusion

• Maybe but others could produce the same electropherogram

What type of blood can receive any type of blood?

• A
• B
• AB
• 0