Mendel's work was not recognised as important until many years after his death. Which statement best explains why?
Mendel had studied only pea plants, so other scientists ignored all of his results
Mendel had made mistakes in his results, which other scientists later corrected
Genes and chromosomes were not yet known, so his 'units' meant little to others
Mendel never published his results, so no other scientist was able to read them
40 exam-style questions on AQA GCSE Biology 6.3 The development of understanding of genetics and evolution, covering 6.3.1 Theory of evolution, 6.3.2 Speciation, 6.3.3 The understanding of genetics, 6.3.4 Evidence for evolution, 6.3.5 Fossils, 6.3.6 Extinction, and 6.3.7 Resistant bacteria. Each one has a worked solution and a mark scheme showing where the marks go.