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Unformatted text preview: • Interior of Prokaryotic Cell • Single DNA molecule (circular), concentrated in one area of the cytoplasm called a nucleoid. The DNA is not surrounded by protein. Bacteria may have more than one copy of the DNA molecule. • May have plasmids, independent DNA fragments that carry specific pieces of genetic information. Plasmids can be transmitted from one bacterium to another, or from the environment to a bacterium. Plasmids are important in recombinant DNA research. • Cytoplasm • Ribosomes, composed of RNA and protein, of 70s density. • NO internal membrane-bounded structures (organelles)...
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This note was uploaded on 12/29/2011 for the course BIO 151 taught by Professor Edwards during the Spring '10 term at SUNY Stony Brook.
- Spring '10