Multiple choice

How can mutations in regulatory regions affect a gene

  1. How much the gene is transcribed

  2. Whether or not it is expressed at all

  3. Both

  4. Neither (no effect)

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Regulatory regions control gene expression. Mutations here can change the rate of transcription (how much protein is made) or disrupt the binding sites entirely, preventing expression.