Quiz 🧬 Biology
MIT 7.01SC: Molecular Biology
DNA replication, transcription, translation, and regulation.
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Question 1
DNA polymerase adds nucleotides to which end of a growing DNA strand?
- The 3' end
- The 5' end
- The phosphate-free middle only
- The ribosome surface
Question 2
Transcription produces what molecule from a DNA template?
- RNA
- A folded lipid
- A polysaccharide only
- A phospholipid bilayer
Question 3
Translation occurs at which cellular structure?
- Ribosome
- Nuclear envelope only
- Golgi lumen as the decoding site
- Centrosome only
Question 4
A codon consists of how many RNA bases?
- Three
- One
- Two
- Ten
Question 5
In bacteria, an operon is best described as what?
- A cluster of genes regulated together under shared control sequences
- A membrane-bound organelle
- A type of antibody
- A chromosome found only in humans
Question 6
PCR is used primarily to do what?
- Amplify a specific DNA sequence
- Digest proteins in the stomach
- Measure market elasticity
- Write legal precedent
Question 7
Gel electrophoresis separates DNA fragments mainly by what property?
- Size
- Taste
- Legal ownership
- Political party
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