Cambridge AS & A Level Biology
6.2Protein synthesis
Protein synthesis in Cambridge AS & A Level Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic57 practice questions3 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 6.2.1State that a gene is a sequence of nucleotides in DNA that codes for a polypeptide.
- 6.2.2Describe the universal genetic code of triplets coding for amino acids, start and stop codons.
- 6.2.3Describe transcription and translation, with the roles of RNA polymerase, mRNA, codons, tRNA, anticodons and ribosomes.
- 6.2.4State that the transcribed strand is the template strand and the other the non-transcribed strand.
- 6.2.5Explain how introns are removed and exons joined to form eukaryotic mRNA.
- 6.2.6State that a gene mutation is a change in the base sequence that may alter a polypeptide.
- 6.2.7Explain substitution, deletion and insertion mutations and how each may affect the polypeptide.
Lessons
- Full access
Gene mutations: types, effects and sickle cell anaemia
35 min
- Full access
The genetic code and transcription
30 min
- Full access
Translation: from mRNA to polypeptide
35 min
Join to read every lesson, or see what Full access includes.
Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Turn Protein synthesis into a strength.
Practise with instant marking, see your mastery grow and get a study plan built around your exam date.