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Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

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12 questions

SA-OB-DN-0011 markL1 FoundationCalculatorGenes
A gene is
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Salam Academy Original Practice · Proposed mark scheme
SA-OB-DN-0021 markL1 FoundationCalculatorGenes
Different versions of a gene are called
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Salam Academy Original Practice · Proposed mark scheme
SA-OB-DN-0031 markL1 FoundationCalculatorCell division
How many chromosomes are in a human sperm cell?

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Salam Academy Original Practice · Proposed mark scheme
SA-OB-DN-0121 markL1 FoundationCalculatorCell division
Growth and repair of tissues use
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Salam Academy Original Practice · Proposed mark scheme
SA-OB-DN-0041 markL2 StandardCalculatorCell division
Mitosis produces
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Salam Academy Original Practice · Proposed mark scheme
SA-OB-DN-0051 markL2 StandardCalculatorCell division
Meiosis is used to
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Salam Academy Original Practice · Proposed mark scheme
SA-OB-DN-0061 markL2 StandardCalculatorGenes
The sex chromosomes of a human male are
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Salam Academy Original Practice · Proposed mark scheme
SA-OB-DN-0071 markL2 StandardCalculatorGenes
The molecule that carries the genetic code from the nucleus to ribosomes is
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Salam Academy Original Practice · Proposed mark scheme
SA-OB-DN-0081 markL2 StandardCalculatorCell division
Cells produced by meiosis are genetically different because
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Salam Academy Original Practice · Proposed mark scheme
SA-OB-DN-0091 markL2 StandardCalculatorGenes
A diploid cell contains
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Salam Academy Original Practice · Proposed mark scheme
SA-OB-DN-0101 markL2 StandardCalculatorCell division
Stem cells are useful because they can
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Salam Academy Original Practice · Proposed mark scheme
SA-OB-DN-0112 marksL3 ExamCalculatorGenes
Three DNA bases code for one amino acid. How many bases are needed to code for a protein of 150150 amino acids (ignoring stop signals)?

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Salam Academy Original Practice · Proposed mark scheme