MICI 2100 Lecture Notes - Lecture 2: Plasmid, Carl Woese, Recombinant Dna
28 Jun 2017
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Document Summary
Nucleus : a membrane-bound organelle containing a cell"s primary genetic info (chromosomes). Note : some organelles contain different kinds of nucleic acids (i. e. ribosomes, mitochondria, etc). Karyon = latin for kernel / nut. Objective classification : a classification that is based on physical characteristics. Note : bacterial cells do not have nuclei. (bacterial) chromosome : a genetic element that carries genes, which are essential for cellular functioning. If a chromosome is removed from the cell, the cell with die. Bacterial plasmid : an extrachromosomal" genetic element that is not essential for cellular functioning. In other words, removing a plasmid will not result in cell death. Oftentimes, plasmids are beneficial for bacteria in that they enhance a particular trait of a cell. Plasmids are used in recombinant dna technology . Plasmids can be isolated and moved between cells. Occurs when bacterial cells share" their plasmids. Genome : the entire set of genes within an organism.
