Hello class, today we will be learning about Protein Synthesis!
STEP ONE: TRANSCRIPTION (IN THE NUCLEUS)
The base U is used instead of T, so the mRNA is small enough to get out of the nucleus!
The DNA is unzipped at the location of the gene that codes for the protein wanted. This section is them copied to mRNA.
Because it is now small enough to leave the nucleus, it leaves the cell and goes to the Ribosome. This is where a process called translation begins.
Then the ribosome "reads" the mRNA, each triplet of bases (or codon) codes for an amino acid. These amino acids are brought to the ribosome by tRNA and attached in the order according to the mRNA code to form a chain (polypeptide).
The mRNA attaches to a ribosome.
TRANSLATION (IN THE CYTOPLASM)
Once made, the amino acid is folded into a protein. The specific shape of the protein helps determine its function, and will be carried off to where it is needed, inside or out of the cell.
PROBLEMS IF MISTAKES ARE MADE:
Abnormal replication, diseases and mutations within the organism!
But don't worry; copying errors in code usually don't matter!