MICRB316 Lecture Notes - Lecture 27: Computational Genomics, Tubulin, Meninges

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Physiological adaptation: a change in gene expression in the cells of a population in response to a change in the environment. Genetic adaptation: overgrowth of a mutant cell to become the predominant type in the population. The bacterial genome can go rapid change that is difficult to determine wheter an observed change in bacterial culture is the result of physiological or genetic processes. Genetic adaptation of a given population over a short time scale is sometimes called micro-evolution. Macro-evolution: genetic adaptation along a long time scale. Dna (also not exclusive, for the most part bacterial genomes are like that). Patterns of gene arrangements: co-transcription of related genes in operons: e. coli of 900 mapped genes, 260 are arranged in 75 operons. One promoter can drive the expression of +1 genes. If you have ori at one end of the chromosome, terminus site is at the other end. Most are near ori and all of them are in the direction that the.

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