Biology 9700 · AS & A Level · Principles of genetic technology

Principles of genetic technology — practice question

(a)[8]

Describe how penicillin acts on bacteria.

(b)[7]

Outline how microorganisms are used to extract heavy metals from their ores.

Worked solution & mark scheme

This 15-mark question has a full step-by-step worked solution and mark scheme. One marking point: “peptidoglycan is present in bacterial cell walls” …

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