RNA and protein synthesis
RNA is a type of nucleic acid called ribonucleic acid:
RNA differs from DNA in the following ways:
There are two types of RNA that need to be known for this topic. The first is messenger RNA, or mRNA. This is formed in the nucleus of the cell [cell: Basic unit of life. Unicellular organisms only have one cell. Multicellular organisms have many cells.] . It rewrites the sequence of bases of a section of DNA in a process called transcription.
mRNA carries the code for building a specific protein from the nucleus to the ribosomes in the cytoplasm [cytoplasm: The living substance inside a cell (not including the nucleus).] . That is, it acts as a messenger.
The second is transfer RNA, or tRNA. This is found in the cytoplasm.
The tRNA picks up specific amino acids [amino acids: Complex molecules, which form the building-blocks of proteins.] from the cytoplasm and brings them into position on the surface of a ribosome where they can be joined together in specific order to make a specific protein.
This process is called translation.
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