Health Sciences 2700A/B Lecture Notes - Lecture 3: Low Birth Weight, Quantitative Trait Locus, Epigenetics
22 Sep 2020
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Should deepen our understanding in some way. Biology and evolutionary theories: genetics and epigenetics interact with the environment to shape health/wellbeing. We each have 23,000 genes in each cell nucleus of our body: genotype vs. phenotype. Genotype is the specific genetic material on individual chromosomes whereas phenotype is the observed characteristic: patterns of inheritance. Polygenic inheritance (many genes influence a trait) Mitochondrial inheritance (inherit genes from the mother"s egg) Epigenetics is the study of changes stemming from modification of gene expression rather than alteration of the genetic code. Epigenetic markers regulate gene expression (by turning genes on or off) By controlling gene expression, epigenetic mechanisms regulate bodily processes. Video: the epidemic of chronic disease and understanding epigenetics tedtalk . Low birth weight babies vs. high birth weight babies can impact generations to come. The egg that makes you is nourished by your grandmother, because eggs are made in women while still in the womb: generation domino effect.
