Biology B (Advancing Biology) H022: Nucleic acids Topical Past Paper Questions
OCR AS Biology B (Advancing Biology) (H022) past-paper questions on Nucleic acids, free. This topic is frequently examined across 4 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
(a) Species can be classified based on a taxonomic hierarchy. (i) What is meant by the term hierarchy in this context? [1] (ii) Two concepts used in classifying organisms are the biological species concept and the phylogenetic species concept. Describe the difference between thes…
Which of the options, A to D, are components found in a strand of ribonucleic acid (RNA)? A deoxyribose, uracil, phosphate B ribose, adenine, phosphate C ribose, thymine, phosphate D ribose, uracil, ATP
The number of chromosomes in a developing fetus can be checked by producing a karyogram. Which of the options, A to D, about the production of a karyogram is not correct? A fetal cells can be extracted from the placenta B fetal cells are stimulated to divide by meiosis C a chemic…
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