2.3.4- Genes and Protein Synthesis

Genes:

• dna contains gene 
• a gene is a sequence of dna nucleotides that codes for a polypeptide
• this sequence forms the primary sequence of the polypeptide chain
• the nucleotide bases in a gene determine the order of the amino acids in a protein
• each amino acid is coded for by a sequence of 3 bases (triplet) in a gene
• the genetic code: is the different sequence of bases code for different amino acids
• so the sequence of bases is a template used to make proteins.

DNA, RNA and protein synethesis:

• DNA is found in the nucleus, it is too large to leave so a section is copied into mRNA- 
  Transcription
• The mRNA leaves the nucleus and…