A Levels Biology (9700)•9700/11/M/J/24

Explanation
Bacterial DNA Features in Prokaryotes
Steps:
- Identify bacterial cells as prokaryotes with circular DNA lacking eukaryotic nuclear structures.
- Check each option against prokaryotic biology: introns and telomeres are eukaryotic, capsid is viral.
- Recognize template strand as a universal DNA component used in transcription.
- Confirm template strand's role in bacterial gene expression.
Why C is correct:
- The template strand is the DNA sequence read by RNA polymerase during transcription, a process essential in all cells with DNA, including bacteria (per central dogma of molecular biology).
Why the others are wrong:
- A: Introns are non-coding sequences spliced out in eukaryotic mRNA; bacterial genes lack introns.
- B: Telomeres are protective caps on linear eukaryotic chromosomes; bacterial DNA is circular without them.
- D: Capsid is a protein shell enclosing viral genomes; bacteria do not produce capsids.
Final answer: C
Topic: Cells as the basic units of living organisms
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