In most cells, directs the production of a molecule of

which then enters a ribosome

Ribosomes are macromolecular machines, found within all living cells, that perform biological protein synthesis (mRNA translation). Ribosomes link amino acids together in the order specified by the codons of messenger RNA molecules to form polypeptide chains. Ribosomes consist of two major components: the small and large ribosomal subunits. Each subunit consists of one or more ribosomal RNA molecules and many ribosomal proteins (RPs or r-proteins). The ribosomes and associated molecules are also known as the translational apparatus.

Explanation:

Messenger RNA copies the message from DNA in the nucleus and carries the message to the ribosome in the cytoplasm.

weathering is the answer.

not sure if this what   you'r looking for would be percent composition