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Genetics
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Genetics By Craig Johnson DNA and RNA DNA (deoxyribonucleic acid) is the molecule whose primary function is to store and transmit genetic information that tells cells which proteins to make. In eukaryotic cells DNA is found in the nucleus in the form of chromosomes. In prokaryotic cells it is very small and in the cytoplasm. DNA is in the shape of a double helix. It is made up of nucleotides, which consist of a five-carbon sugar, a phosphate group, and one of four nitrogenous bases. These bases are adenine, guanine, cytosine, and thymine. Under the rule of base pairing, adenine always pairs with thymine, and guanine always pairs with cytosine. RNA (ribonucleic acid) is different in function and in form. In RNA thymine is replaced with uracil. RNA also is not in the form of a double helix. There are three different kinds of RNA: messenger (m)RNA, transfer (t)RNA, and ribosomal (r)RNA.
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Paper Information
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Title: Genetics
Words: 736
Rating: None
Pages: 2.9
submitted by: craigercj
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