DNA (and sometimes RNA).
what kind of molecules contain the insructions for ordering amino acid in protein
The DNA molecule contains the genes for the construction of protein molecules.Genes contain instructions for building proteins.
To a first approximation each gene contains the instructions to build one protein molecule. However there are a few exceptions to this:a few genes do not code for proteins at all, their "messenger RNA" molecules are used directly without translation for regulating other genesin a small number of organisms with very small genomes (e.g. certain viruses) a gene may have more than one transcription frame allowing it to have instructions for building two or three protein molecules
DNA
Collagen is a protein yes. Protein is a broad category of molecules.
Protein Molecules
DNA
Amino acids
Genes
The DNA molecule contains the genes for the construction of protein molecules.Genes contain instructions for building proteins.
Proteins are polymers of amino acids. The instructions for protein synthesis are contained within the genes (on DNA). This instructions are read from an mRNA at the ribosomes to produce the correct sequence of amino acids - a protein.
Dna for the building of protein on a cytoplasmic structure called ribosomes. RNA leaves the nucleus and carries out the instructions.