BIOL130 Lecture Notes - Lecture 8: Sister Chromatids, Cell Division, G1 Phase
20 Apr 2017
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Document Summary
Involved only in the prod of gametes (eggs, sperm: basis of sexual reproduction and gen inheritance. In chromosomal form - for a very short period: chromatin invisible by light microscopy, hypertonic lysis spew their dna out you can pull it out like dna snot. Homologous chromosomes vs. sister chromatids: homologous is a pair one from each parent, when each of the pair replicate from sister chromatids joined by centromeres but they are also joined all along the chromosome. Cell cycle: cell is alternating b/w interphase and m phase. Interphase 3 subdivisions: much longer than m phase, 90% of a ploriferati(cid:374)g (cid:272)ell(cid:859)s ti(cid:373)e, grows by prod proteins, organelles, copies. Monomers of tubulin join up to form microtubules. In g2 the synthesis of tubulin is heightened b/c lots of monomers are required to build this: actin filaments plays large role in cytokinesis, cytokinesis splitting of the entire cell. Meiosis sexual reproduction: diploid parent to haploid gamete (eggs and sperm)
