DNA Analysis

Which model of base pairing is correct?

• A=T and C=G

• A=T=C=G

• A+T and G+C

• A=G and T=C

The computerized database used to store DNA information is: 

• AFIS

• NIBIN

• CODIS

• PDQ

Which DNA strands move the fastest through the gel when the electricity is turned on?

• The long strands

• The short strands

• The medium strands

• They all move the same

What is the purpose of gel electrophoresis in DNA analysis?

• To separate DNA based on size

• To visualize DNA fragments

• To create a DNA profile

• To compare DNA sequences

DNA can be used for ...

• determining paternity

• identifying human remains

• identifying a suspect

• All of these

Tags

SFS3

This is the last step of PCR and it requires the temperature to increase to 72C for one minute. Here, complementary strands will be produced from the corresponding base pairs, reforming the DNA into two new strands.

• Elongation by DNA Polymerase

• Primer Annealing

• Denaturation

Why are restriction enzymes used when making a DNA fingerprint using STRs?

• They are used to determine the size and shape of DNA fragments.

• They are used in order to allow us to determine if a specific family or family member is related to the crime based on their DNA fragments.

• STR bands are units of bases that are typically two to five bases long and repeat multiple times. Restriction enzymes cut these bands since they match the enzyme, making them easily recognisable.

There are multiple male suspects involved in a case. Which of the following analysis techniques would be most helpful in differentiating the men from one another ?

• Y-Marker Analysis

• SNP Analysis

• Amelogenin Gene Analysis

• Mitochondrial DNA Analysis

Tags

SFS3

Which part(s) of a hair can be analyzed for DNA?

• root

• cuticle

• medulla

• cortex

This is the last step of PCR and it requires the temperature to increase to 72C for one minute. Here, complementary strands will be produced from the corresponding base pairs, reforming the DNA into two new strands.

• Elongation by DNA Polymerase

• Primer Annealing

• Denaturation