The table shows the amino acid coded for by some triplets of bases in a gene.
Table
| Triplet of bases | Amino acid coded for |
|---|---|
| AAA | Lysine (Lys) |
| ATG | Methionine (Met) |
| GGC | Glycine (Gly) |
| TTT | Phenylalanine (Phe) |
A section of the gene has the base sequence ATGTTTGGCAAA.
Which sequence of amino acids does this section of the gene code for?
Met–Phe–Gly–Lys
Met–Lys–Gly–Phe
Phe–Met–Lys–Gly
Met–Phe–Lys–Gly
184 exam-style questions on OCR GCSE Biology 1.2 What happens in cells (and what do cells need)?, covering 1.2.1 Structure of DNA, 1.2.2 Nucleotides and complementary bases, 1.2.3 Protein synthesis, 1.2.4 DNA structure and the proteins made, 1.2.5 Investigating enzymatic reactions, and 1.2.6 Mechanism of enzyme action. Each one has a worked solution and a mark scheme showing where the marks go.