MGY377H1 Lecture Notes - Lecture 4: Noncoding Dna, Gc-Content, Base Pair
1 Feb 2018
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Staph aureus has a 3 million base pair genome. Yeast is a single celled eukaryotie, whichhas 12 million base pairs on 3 linear chromosomes with telomeres. Ba(cid:272)terial ge(cid:374)o(cid:373)es (cid:272)a(cid:374) differ i(cid:374) size a(cid:374)d (cid:272)o(cid:373)ple(cid:454)it(cid:455). Large (cid:271)a(cid:272)terial ge(cid:374)o(cid:373)es ha(cid:448)e (cid:1005)(cid:1004) million base pairs of dna. Depiction: the largest viral genomes start to approach the smallest bacterial genomes, the largest bacterial genomes start to approach the smallest multicellular genomes. In the genome, theres usually 1 protein coding gene per 1000 base pairs. This means that if there are a larger gnome, they code more geans and f they code more genes, they can do more things. In bacterial genomes, reading frames are following by other reading frames. Not all (cid:271)a(cid:272)teria ha(cid:448)e a si(cid:374)gle (cid:272)hro(cid:373)oso(cid:373)e. do(cid:374)"t memorize. Generalists can live in a large array of environments, so they need a larger toolbox of genes to workm with. The more specialized genomes have more at right genomes.
