L & S C30Y Lecture 13: Lecture 13
3 Mar 2017
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Document Summary
Genetically identical creatures can look different because of epigenetics. Genes are the same but what the genes do is different. Epigenetics play with dna methylation: doesn"t change dna sequence. Studied evolution and got it unbelievably wrong inheritance of acquired characteristics: organism exposed to environment organism changes, that change is passed onto the next generation. False: next generation is exposed to environment some more they change some more, the cycle repeats itself. The only part of the body that contributes to the next generation are the gonads. The physical body does not contribute anything hereditary to the next generation. Since introduction of mandatory fortification of grains with folic acid, a further decrease in ntd prevalence has been reported in. North america and other countries with large variations among ethnic subgroups. However, a significant portion of ntds still persists. The prevalence of folate-remedial mthfr enzyme variants in humans. A genetic signature of spina bifida risk from pathway-informed comprehensive gene-variant analysis.
