Year 12 Biology
DNA, genes and protein synthesis
DNA in prokaryotes and eukaryotes, genes and the genetic code, chromosomes, the structure of mRNA and tRNA, transcription and translation, and how the base sequence determines the order of amino acids.
DNA, genes and protein synthesis free practice
No timer and no account needed. Check each answer as you go, then read the explanation.
1. A chemical stops RNA polymerase from working. Protein production in the cell falls to zero, but only after about an hour. Which explanation is most likely?
Your answer is marked as soon as you give it.
Want more of this topic?
- A narrated lesson video that works through the topic, with worked examples
- 100 practice questions at foundation, core and stretch level
- A worked explanation on every answer, and progress you can come back to
The lesson and practice open when you start the 7-day free trial. Cancel before it ends and you pay nothing.