Evolution, speciation and scientific validation Quiz
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5 questions, one answer each
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1. Which describes evolution?
- A. A change in allele frequency in a population
- B. A change in one organism during its lifetime
- C. The formation of a single mutation
- D. The survival of every individual
2. In a population of bacteria, a resistance allele increases after antibiotic use. Why?
- A. Bacteria mutated because they needed resistance
- B. Resistant bacteria survived and reproduced, passing on the allele
- C. Antibiotics make alleles
- D. All bacteria acquired resistance in their lifetime
3. What is the role of peer review?
- A. To publish results quickly
- B. To increase the number of results
- C. Independent experts check that methods, data and conclusions are valid
- D. To protect data from other scientists
4. Two species differ by 3 amino acids in a protein; a third differs from the first by 20. What can be concluded?
- A. The first two share a more recent common ancestor
- B. The third is the ancestor of the first
- C. All three diverged at the same time
- D. The proteins are unrelated
5. A river splits a population of rodents and they slowly become different species. This is
- A. sympatric speciation
- B. allopatric speciation
- C. genetic drift
- D. artificial selection