Protein synthesis

Two phases

1)Transcription is where one strand of the DNA 
double helix is used as a template by RNA polymerase to 
synthesize messenger RNA from RNA nucleotides. 

2)The mRNA then migrates into the cytoplasm maturing -
splicing of non-coding sequences. 
Translation occurs when the ribosome binds to mRNA and 
transfer RNA brings amino acids into position along the mRNA template.
The ribosome moves from codon to codon along the mRNA producing a 
polypeptide sequence.