Pages in this set

Page 1

Preview of page 1
Polypeptide Synthesis


Transcription splicing translation

DNA pre-mRNA mRNA polypeptide


Transcription




1. The enzyme DNA helicase hydrolyses hydrogen bonds in a specific region of the DNA
molecule, causing the 2 strands of the DNA to separate and expose the bases.
2. The enzyme RNA polymerase moves along one DNA strand, the…

Page 2

Preview of page 2
number of different proteins depending upon the order in which the exons are combined. A splicing
error such as this is believed to cause Alzheimers disease.
Translation

mRNA arrives at a ribosome from the nucelus (via nucelic pores.) Translation takes place at the
ribosomes. Is in this stage in which…

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all resources »