NEUR 3402 Lecture Notes - Lecture 3: Amygdala, Brainstem, Choline
24 Feb 2017
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Ex the hormone grelin is encoded by a gene, once transcribed , is modified by enzymes. The fto enzyme is important for the stimulation the grelin gene. Recently it has been shown that this enzyme is a demethylase . explain the mechanism. )f it"s a demethylase lowers methylation higher expression. Mutations can quickly change the success of the animal: often lethal. Drastic environmental change need to adapt: dinosaurs. Wiped out 90% - only those that were protected or adapted thrives: therefore it went from. Genes altered by the environment (like meteor with the dinos) Splurge in speciation (new animals: punctuated evolution. Talked about today: stress is the most common . Genes are not always active: negative gene regulation (picture) Gene stimulation: if these don"t happen appropriately at the right time (cid:523)critical periods(cid:524) Changes gene expression = underdeveloped pfc (less waves) Protein needed for testes release of testosterone development female: lack of testosterone will lead to diffs in every level of.
