Unit 6 Test 1
Quiz by Zhao
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- Q1
The process by which DNA makes messenger RNA
Replication
Transcription
Translation
Transformation
30s - Q2
The process by which DNA is synthesized from a template strand
Translation
Transformation
Replication
Transcription
30s - Q3
The process by which foreign DNA is taken up by a bacterial cell
Translation
Transformation
Replication
Transcription
30s - Q4
The process by which a polypeptide strand is synthesized using mRNA as a template
Translation
Transformation
Replication
Transcription
30s - Q5
All of the following are true about electrophoresis EXCEPT
the fragments of DNA are negatively charged and migrate to the positive pole
a buffer must cover the gel to allow a current to pass through the system
it can be used only to analyze DNA
the heavier the fragment, the slower it moves
30s - Q6
EcoRI stands for E. coli restriction enzyme #1. It was the first _______ enzyme discovered.
Users re-arrange answers into correct orderJumble30s - Q7
In DNA replication, the role of DNA polymerase is to
join the RNA nucleotides together to make the primer
unwind the tightly wound helix
build a new strand of DNA from 5′ to 3′
bring two separate strands back together after new ones are formed
30s - Q8
Which is NOT used in the normal replication of DNA?
RNA primer
restriction enzymes
ligase
polymerase
30s - Q9
DNA replication can best be described as
semiconservative
conservative
comparative
degenerate
30s - Q10
If a segment of DNA is 5′-TGA AGA CCG-3′, the RNA that results from the transcription of this segment will be
3′-ACU UCU GGC-5′
3′-ACT TCT GGC-5′
3′-CGG UCU UCA-5′
5′-TGA AGA CCG-3′
30s - Q11
Once transcribed, eukaryotic RNA normally undergoes substantial alteration that results primarily from
removal of introns
addition of introns
removal of exons
combining of RNA strands by a ligase
30s - Q12
Which of the following contain a pyrimidine and a purine?
uracil and thymine
adenine and guanine
adenine and cytosine
cytosine and uracil
30s - Q13
What happens when T7 bacteriophages are grown in radioactive phosphorus?
They die.
Their DNA becomes radioactive.
Their protein coat becomes radioactive.
They can no longer infect bacteria.
30s - Q14
Which of the following acts as a primer that initiates the synthesis of a new strand of DNA?
topoisomerases
single-strand binding protein
RNA
DNA
30s - Q15
If guanine makes up 28% of the nucleotides in a sample of DNA from an organism, then thymine would make up ____ % of the nucleotides.
56
22
44
28
30s