Answer the following question given this paragraph: 

Transcription is the first step in protein synthesis. It takes place in the nucleus. During transcription, a strand of DNA is copied to make a strand of mRNA. How does this happen? It occurs by the following steps, as shown in Figure below .


Q: What is the first step in protein synthesis?

 Choices:

- reproduction

- differentiation

- mutation

- transcription

A:
transcription
