Genetic analysis indicates that Archaea differ substantially from Bacteria, despite both having cells without a nucleus. What does this show about classification?
Genetic evidence makes similarities in inherited sequences irrelevant to classification.
Cell structure proves all organisms without nuclei belong to one domain.
Cell structure proves Archaea belong in the same kingdom as animals.
Genetic evidence can reveal relationships missed by cell structure alone.
44 exam-style questions on Edexcel GCSE Biology 4.1 Evolution and natural selection, covering 4.1.1 Work of Darwin and Wallace and 4.1.2 Resistant organisms and evolution. Each one has a worked solution and a mark scheme showing where the marks go.