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Define epigenetics?
Heritable changes to gene function caused by the environment. Changes without change in DNA base sequence
For increased methylation of DNA to cause cancer what must happen?
Both tumour supressor genes of each one in a pair of homologous chromosomes must be silenced by methylation so cell cycle cannot be controlled
Why cant prokaryotes transcribed eukaryotic DNA?
Contains introns. They cannot carry out splicing
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