L & S C30Y Midterm: Midterm 2 Review--Epigenetics through GMOs
22 Mar 2017
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If aging were random, it wouldn"t be like this. If you look at identical, any difference between them is due to environment scatterplot clustered along 45 degree angle on graph=trend. Fraternal twins only share half dna; any difference between them is due to environment. They found a mutant that couldn"t grow without amino acid argenine. Took that mutant, mated that mutant to a normal yeast, did meiosis. Conclusions genes produce enzymes: igf1 is a gene that expands lifespan, igf controls size, the redistribution of body resources from conservation vs. growth. Small dogs live twice as long as big dogs because of. Has been shown experimentally: there are alleles of igf that track longevity appears to also track with smaller size, we don"t know how or when or where to fix igf. Diet: in worms/mice, change 1 gene and you double mice. Exhales oxygen: humans eat the plant, burn the sugar, inhale oxygen, exhale co2.
