lecture 19: epigenetics

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10 Terms

1
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define epigentics

2
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explain why the residue is methylated and what other residue needs to be adjacent

3
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name two mechanisms by which methylation inhibits gene expression. include in your answer heterochromatin formation

4
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how can methylation activate gene expression

5
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how does imprinting get erased during the life cycle and when does it get established again? is it completely erased?

6
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how do cells manage dosage compensation in humans compared to C. elegans and Drophoshila?

7
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how does Xist cause X inactivation?

8
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What is the role of Tsix

9
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How are chromosomes counted? (Xist)

10
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how could you show the Xist is necessary and sufficient for chromosomal inactivation?