Between last monday and today we have finished the section on DNA repair and have covered most of the section on control of gene expression.
Last Monday (Jan 26) we closed the DNA repair section, covering the concept of emergency DNA repair: When extensive damage in the DNA is detected by RNA polymerase and is repaired not just by the regular DNA polymerase, but also by a battery of DNA polymerases that are less accurate, but more specific for a type of damage. They also lack proofrweading capacity, so the likelihood that there will be mistakes during the repair process is higher than with other DNA repair mechanisms.
Between Friday (Jan 30) and today, we have been studying the basics of control of gene expression. So far we have focused on transcriptional control, and on Monday we will focus on mechanisms of post-transcriptional control.
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