How does the cell convert DNA into a protein.
Chromosomes contain genes. The genes contain the genetic code for proteins.
Here is how it works.
Creating a protein begins when the DNA unzips and RNA polymerase attaches to the DNA and starts creating a strand of mRNA.
The mRNA is similar to DNA but does not have the nucleotide Thymine. Instead it has uracil.
The uracil attaches to adenine.
Here is how the mRNA would attach to the following strand of DNA
Notice the A pairs with U
This process of creating mRNA is called transcription.
The next step is translation
Once created the mRNA travels out of the nucleus into the cytoplasm and then to the ribosomes.
At the ribosome the mRNA is read in triplets called codons.
Each codon is a code for a particular amino acid.
Here is a chart of each codon and the amino acid it pairs up with
AUG is the start triplet,and UGA UAA UAG is the stop signal
Transfer RNA found in the cytoplasm moves to the ribosome and pairs up to the correct codon.
A tRNA has an amino acid on one end, and a anticodon on the other end
tRNA will continue to string amino acids together until it reaches a stop code.
The amino acids form a long chain of amino acids help together by a peptide bond.
After reaching the stop codon the long chain of amino acids will twist and fold and create a protein.
Here is a summary of DNA to a Protein
How you go from DNA to a protein.
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