General Biology I · Module 14 · Gene expression

Gene Expression Walkthrough

Watch a gene get read: RNA polymerase opens the DNA and builds RNA, the spliceosome cuts out introns, tRNAs bring amino acids to the ribosome, and one changed letter turns a red blood cell into a sickle. Go at your own pace. Nothing here is graded.

Speed

Think of it like this

Quick check

Wrong answers are fine here. Read why, then try again.

Dr. Akash Garg · General Biology I Study Tools · Drawings are simplified and not to scale. CC BY-NC-SA 4.0
Use the left and right arrow keys to move between steps. Molecular motion is sped up and simplified so you can watch it. Practise next in the Gene Expression Lab.