Briefly describe protein synthesis in a cell. Include the following terms: nucleus, ribosome, DNA, mRNA, tRNA, amino acids, and cytoplasm
What will be an ideal response?
DNA in the nucleus stores the coded genetic information needed for making proteins. DNA can't leave the nucleus of the cell; instead, messenger RNA (mRNA) made in the nucleus takes a copy of the information to a ribosome in the cytoplasm. The ribosome moves along the mRNA, reading the code. Another type of RNA–transfer RNA (tRNA)–picks up an amino acid that is needed to build a specific protein and carries it to a ribosome. (There are 20 different tRNAs, one for each amino acid.) The ribosome then builds the protein by connecting the amino acids in the proper sequence as directed by the code in the mRNA. The ribosome continues to move down the mRNA strand until each of the appropriate amino acids has been added and the protein is complete.
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