In order to make a protein you first have to have a template for the protein you want to make. DNA is the template, it is made up of Adenine, Thymine, Cytosine and Guanine and is in the shape of a double helix, it is only found in the nucleus of a cell. When a protein is needed mRNA gets a signal to transcribe the DNA message for that protein. It does this by opening up the DNA and putting it into mRNA letters, mRNA uses Uracil instead of Thymine in its code. mRNA then leaves the nucleus, it enters the cytoplasm and finds a ribosome. The ribosome is made of rRNA and is capable of reading the mRNA. It reads the mRNA in a sequence of 3 nitrogen bases (codons) at a time. each codon represents an amino acid. The tRNA gets the signal from the ribosome to go pick up the proper amino acid that was coded for by the mRNA, it brings the amino acid back to the ribosome and places it where it belongs by using the anti-codon. The amino acid is then bonded (peptide bond) with the other amino acids to create a specific protein!!! (.." the code gets translated, acids are created, then proteins are made-hip,hip, hurray!!!!
Good LUCK!!
GET more help online by practicing! http://learn.genetics.utah.edu/content/begin/dna/transcribe/
