A taxonomist is studying the evolutionary relationships between several newly discovered species of tropical beetles. To construct a molecular phylogenetic tree, they decide to compare the primary sequences of highly conserved biomolecules.
Which option correctly identifies both a biomolecule and the sequence type that can be used to determine these evolutionary relationships?
The nucleotide base sequence of the gene encoding cytochrome c
The amino acid sequence of the 16S16\text{S}16S ribosomal RNA subunit
The nucleotide base sequence of the cytochrome c protein
The amino acid sequence of transfer RNA (tRNA)
22 exam-style questions on OCR A A Level Biology Classification and evolution. Each one has a worked solution and a mark scheme showing where the marks go.