Biology 9700 · AS & A Level · Gene control

Gene control — practice question

Section B. Answer any one question.

(a)[9]

Using named examples, describe how structural genes differ from regulatory genes and how repressible enzymes differ from inducible enzymes.

(b)[6]

Explain how transcription factors function in gene expression in eukaryotes.

Worked solution & mark scheme

This 15-mark question has a full step-by-step worked solution and mark scheme. One marking point: “structural genes encode proteins” …