HDFS 2317 1st EditionLecture 5Biological Beginnings - BREAKOUT ROOM 2Outline of Previous LectureI. The Evolutionary PerspectiveII. Genetic Foundations of DevelopmentIII. Heredity and Environment Interaction: The Nature-Nurture DebateIV. Prenatal DevelopmentV. Prenatal CareVI. BirthOutline of Current Lecture I. Epigenetics Video 1 (NOVA ScienceNow)II. Epigenetic Video 2III. QuestionsCurrent LectureEpigenetics and You! Is DNA Your Destiny?I. Epigenetics Video 1 (NOVA ScienceNow)a. Our lifestyles and environment can change the way our genes are expressed.b. Mice in lab genetically identical but physically different in size and appearance. Methyl group fixed to agouti gene, then epigenomec. Epigenome tells our cells what sort of cells they should be (skin, heart, etc.). Not necessarily permanent d. As twins age, epigenetic differences accumulate.e. Epigenetic therapy - trying to change the instructions of the cancer cell (reactivating genes, making cancer cells change into normal cells)II. Epigenetics Video 2 (Hank Green)a. “Genetic punctuation” Same words in sentence, but arranged differently to makeit mean something completely differentb. Methyl groups - DNA instructions made from carbon and hydrogenc. Histones - can change how tightly or how loosely wound the gene isd. Every cell in your body has a cell patterne. Genome does the work. Epigenome tells the genome what to do.III. Questionsa. Define epigenetics in your own wordsThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.b. What did you learn that was interesting?c. What implications does this have for lifespan
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