Question

What is the first thing that happens to the double-stranded DNA after the big green blob (helicase) covers the DNA?

a
The strands of DNA separate
b
The strands of RNA separate
c
Complimentary bases join with hydrogen bonds
d
Messenger RNA is formed

What is the base pairing between the mRNA and tRNA, reading from left to right and in mRNA to tRNA, order?

a
C-G A-U U-A
b
A-T U-A G-C
c
G-C U-A
d
A-U U-A G-C

What has helped with his inherited familial depression?

a
Watching DNA videos
b
Gene therapy
c
Only medications have helped him
d
A specific diet and exercise plan

According to the Solving crime reading, which of the following statements are correct?

a
A match made between a crime scene profile, and an individual profile has never identified a possible suspect.
b
DNA profiles are very useful in forensics, because a very large sample of human material must be left behind at a crime to identify someone.
c
In the USA, the Federal Bureau of Investigation (FBI) recommends that 13 STR sequences are tested.
d
The police rarely use DNA evidence to support other evidence in order to help prosecute someone for a crime.

According to the Linking blood relatives reading and diagram, which of the following statements is INCORRECT?

a
DNA profiling has a low success rate and a very high false-positive rate.
b
In the diagram, the #5 STR is shared with the mother and child
c
DNA profiling can be used to help confirm whether two people are related to one another and is commonly used to provide evidence that someone is, or is not, the biological parent of a child.
d
You get half of your DNA from your mother and half from your father. STRs are therefore passed down from parents to their children.
e
DNA profiling can also be used to identify victims of crime or major disasters and help bring separated families back together.

Answer 1

1) a

2) d

3) c

4) c

5) a