BIOL10800 Lecture Notes - Lecture 8: Membrane Protein, Neurulation, Vitamin K
3 Nov 2016
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The human organism: life cycle of the human being https://sakai. ithaca. edu/access/lessonbuilder/item/500587/group/af6c64e0-e676-498f-bf4c- e166442a29d0/handouts/notes/lecture%203%20figures. pdf. 3 fates of life: health, morbidity (degenerative diseases), death. This reduction in chromosome number occurs in the ovary and testes of the female and male. The female determines the fate of the offspring. The early divisions of the fertilized egg constitute embryonic development. The embryo progresses to become first a solid ball of cells which develops a fluid filled cavity. During this period, cells of the embryo is considered totipotent (holds the ability to divide into any cell type in the fetus and adult body) Differentiation: the progressive loss of potential as the embryo and fetus develop. Pluripotent (stem cells has less options to be something---narrowing its path) Before 1997 it was thought that differentiation was only one way--it was later found out that differentiation can be reprogrammed. People are living a lot longer now than anytime previously.
