Genetics Quiz #1
DNA Structure and Analysis
- 1.
Watson and Crick relied on data and ideas from which technique(s) to assemble their molecular structure of DNA?
- A.
Base composition experiments
- B.
Molecular models (i.e. “balls and sticks”)
- C.
All of the answers are correct
- D.
X-ray diffraction studies
Correct Answer
C. All of the answers are correct -
- 2.
Who isolated DNA for the first time from human cells?
- A.
Griffith
- B.
Meischer
- C.
Schwann and Schleiden
- D.
Schwann and Schleiden
- E.
Mendel
Correct Answer
B. Meischer -
- 3.
In our experiment in lab, what reagent helped us get the plasmid inside our E. coli?
- A.
The LB growth media
- B.
The Transformation and Storage solution (TSS)
- C.
The ampicillin
- D.
No reagent was needed; E. coli have a transporter that can take up DNA from the environment
Correct Answer
B. The Transformation and Storage solution (TSS) -
- 4.
Hershey and Chase’s experiment helped prove that DNA is the genetic material. What if they had used a phage that had RNA as its genetic material? Would their experimental design still work?
- A.
Yes, because their use of RNase would tell them whether RNA was critical.
- B.
No, because the phage RNA would NOT incorporate either [32P] or [35S].
- C.
Yes, because, like DNA, the phage RNA would incorporate [32P] and not [35S]
- D.
No, because the phage RNA would incorporate [32P] and [35S]
Correct Answer
C. Yes, because, like DNA, the phage RNA would incorporate [32P] and not [35S] -
- 5.
In a phosphodiester bond, the phosphate group is connected to which carbons of the pentose sugar?
- A.
3' and 5'
- B.
None of the other answers are correct because the phosphate attaches to a carbon in the base
- C.
1' and 5'
- D.
4' and 3'
- E.
1' and 2'
Correct Answer
A. 3' and 5' -
- 6.
What is NOT a required property of genetic material?
- A.
Ability to be replicated accurately
- B.
Reliable storage of all necessary information for life
- C.
Unchanging over time
- D.
All of the other answers are true
Correct Answer
C. Unchanging over time -
- 7.
In Griffith’s experiments, why did the mouse die when it was injected with live R strain and heat-killed S strain (choose most appropriate answer)?
- A.
One R strain bacterium must have spontaneously mutated to become virulent.
- B.
The R strain surrounded itself with some of the polysaccharide coating from the dead S strain.
- C.
Some of the R strain bacteria took in a fragment of the S strain DNA that encoded for synthesis of the polysaccharide coat.
- D.
Some of the R strain bacteria took in a fragment of the S strain DNA that encoded for ampicillin resistance.
- E.
Some of the S strain bacteria came back to life after acquiring some fragments of the R strain
Correct Answer
C. Some of the R strain bacteria took in a fragment of the S strain DNA that encoded for synthesis of the polysaccharide coat. -
- 8.
The tetranucleotide hypothesis stated that DNA was
- A.
A random sequence of 4 bases.
- B.
Made up of four strands wound together.
- C.
A four nucleotide sequence repeated over and over.
- D.
Was 4 nucleotides in length
Correct Answer
C. A four nucleotide sequence repeated over and over. -
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Jan 11, 2014Quiz Edited by
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Jan 11, 2014Quiz Created by
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