Biology 1001A Lecture Notes - Lecture 8: Bond Length, Guanine, Tautomer
1 May 2013
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Document Summary
Every mitochondria has circular chromosomes, thus all eukaryotic cells have circular chromosomes. Venter individual genome sequence showed 1. 2 million variants. Of the variant bases are single nucleotide polymorphisms (snp) Are copy number variants (cnv), inversions, etc. Each person has about 1000 cnvs affecting 35% genes. Each person has about 300 variants in insertion of retro elements (e. g. lines, sines) Bacterial elements code for their mobility (transposase) Genes that know how to get themselves copied. Makes cuts in dna backbones, and that"s all that"s necessary to initiate the replication and movement of the sequence to another site. An insertion sequence codes for its own mobility. If there are two insertion sequences nearby to one another, they can move everything between them; this is called a transposon. The dna in between tends to code for antibiotic resistance and they replicate and move around in the genomes of bacteria. Some elements move with, some without, making a copy.
