Cell Biology Lecture Notes PDF
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These notes cover the structure and function of nucleosomes, their role in eukaryotic cells, and the process of cell division (mitosis). It also addresses cell cycle stages and the modifications to histones.
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makes up histone core Hi w 1 of Core ↳ HI NOT in Histone Core * bacteria have structures to non-homologous serve similar purpose nucleosomes Conden * an manmicondensation icon occurs * covalent modifications occur on tails of histone core ~ A MOO0 proteins fold. ses 7 fold DNA in tails is V : occurs...
makes up histone core Hi w 1 of Core ↳ HI NOT in Histone Core * bacteria have structures to non-homologous serve similar purpose nucleosomes Conden * an manmicondensation icon occurs * covalent modifications occur on tails of histone core ~ A MOO0 proteins fold. ses 7 fold DNA in tails is V : occurs when a gene is an Man When m namean activated for trans cription. * modifications [ change * don't have to of histone structure nu A H3K27 & R ↓ change know histone marks histones structure AC ! acetulation r lysine 27 of deo some occurs ↓ changes i for removal of nucleosome a gene is mean ↳ ameps I frequency the when ed Dm messaum m H3K4me3 -I * A H3K27me3 don't have to know histone in transcription i N and around methylation acculation marks ! adult embryo not always I ↑ not always neircular circular Chapter 7: Cell division , mitosis , cell meiosis cycle , * also helpful to think as * different size fractions represent approximately now much it time takes and Cytokinesis ↳ G "growth" even highly Still though not , condensed w highly organized ↳ think to * helps P Petite : : can be seen in light microscope ! : short ! arms ↓ Sister double amount of DNA chromatids separate and in Cells - help organize ↳ relationship the of identical chromosomes become &
