KX Modifier - SPECIFIC REQUIRED DOCUMENTATION ON FILE. KX -- SPECIFIC REQUIRED DOCUMENTATION ON FILE. (EFFECTIVE DATE 7/1/2002) This modifier may be used to indicate that specific required documentation is on file in the patient's medical record. Documentation must be submitted upon request.
Proteins are made of amino acids hooked end-to-end like beads on a necklace. To simulate. a protein, you will make a model of your protein using a long chenille stem (the fuzzy. covered wire) and colored beads.
The small factories in a cell that produce proteins are called ribosomes. They use DNA and RNA to carry out protein synthesis on the ribosome.he small factories in a cell that produce proteins are called ribosomes. They use DNA and RNA to carry out protein synthesis on the ribosome.