PSYC 2410 Lecture Notes - Lecture 8: Inbreeding, Methyl Group, Sexual Dimorphism
11 Apr 2016
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Document Summary
Rna synthesized from dna- spliced, from one gene on dna end up with multiple products depending on how rna is spliced. Small regulatory rnas curcial in determining whether rna is translated into protein or peptide it codes for. A change in phenotype that is heritable but does not involve dna mutation. Either see the change or not, is heritable even if initial conditions that caused the switch disappear e. g. cellular differentiation all cells in body contain dna epigenetic changes happen in cell line, retain in the line as the cell divides. Epigenetic markers that regulate gene expression are transmitted from cell to cell. if epigenetic change is in germline (sperms and eggs) Heritable across generations same set of genes different expression over a life cycle e. g. caterpillar butterfly genetically identical twins, look different. Gene is mutated, causes a disease but only one member of twins expresses the disease.
