Conservationists plan a stored seed collection for a rare grass species. They can collect 600 seeds from one parent plant or 600 seeds from many parent plants in several populations.
Why is collecting seeds from many parent plants, rather than one parent plant, important?
It is more likely to preserve a larger number of seeds with the same allele combinations.
It is more likely to preserve a wider range of alleles in the species.
It is more likely to reduce genetic variation between seeds from different populations.
It is more likely to give each seed a wider range of alleles by combining samples.
122 exam-style questions on OCR GCSE Biology 5.2 Natural selection and evolution, covering 5.2.1 Genetic variation within a population, 5.2.2 Developments in classification systems, 5.2.3 How evolution occurs through natural selection, 5.2.4 Evolution as change over time, 5.2.5 Evidence for evolution, and 5.2.6 Darwin and Wallace. Each one has a worked solution and a mark scheme showing where the marks go.