SHS Biology · Year 2
Molecular Biology: DNA, RNA & Protein Synthesis practice questions
The Watson-Crick DNA model, DNA replication, RNA transcription, the genetic code and protein synthesis.
24 questions in this topic: 8 recall, 9 applying skills and concepts, 3 strategic thinking and 4 extended thinking. Every one carries a written explanation.
Sample questions
3 of 24 questions in this topic. Sign up to answer them and see the explanations.
- Question 1Skills & concepts
During translation, the sequence of amino acids is assembled on the
- aribosome
- bnucleus
- ccell wall
- dchloroplast
- Question 2Strategic thinking
A mutation disables the gene coding for DNA polymerase's proofreading function, though the enzyme can still add nucleotides. Predict the most likely consequence for the organism's DNA over successive rounds of replication.
- aReplication errors (mismatched bases) would accumulate more frequently, since proofreading normally catches and corrects such mistakes, potentially increasing the mutation rate
- bDNA replication would stop completely
- cThere would be no consequence, since proofreading is not important
- dThe DNA would replicate faster and more accurately without proofreading
- Question 3Recall
Nucleic acids were first discovered in 1869 by which scientist?
- aFriedrich Miescher
- bJames Watson
- cFrancis Crick
- dCarolus Linnaeus
Answer these and 21 more on Molecular Biology: DNA, RNA & Protein Synthesis
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