A-Level UK (AQA, Edexcel, OCR) · Biology
Evolution, classification and gene technology
7 practice questions, each with the answer and an explanation.
Practise Evolution, classification and gene technology now
Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.
All 7 questions
- Which statement best describes natural selection?
- Which sequence correctly describes allopatric speciation?
- Which is the correct way to write the binomial name of the African elephant?
- One DNA molecule is amplified by PCR for five cycles. How many copies are present at the end, assuming perfect doubling?
- In gel electrophoresis of DNA fragments, which fragments travel the furthest?
- Why is the secondary immune response to a pathogen faster than the primary response?
- Why does overuse of antibiotics lead to antibiotic resistance becoming more common?
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