24: Epigenetic Mechanisms Quiz

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  1. 1. The DNA in the nucleus contains every bit of information that any cell will ever need for the entire lifetime of the organism.

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  2. 2. When a gene is being used and being transcribed, we say it is being _______________.

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  3. 3. What do nucleosomes/histones help to do?

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  4. 4. What does methylation do to DNA?

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  5. 5. Genes can be made up of many different DNA sections that are spread out and must be spliced together.

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  6. 6. What is the “methyl” group?

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  7. 7. How many histones come together to make the nucleosome?

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  8. 8. What does “epi-genetics” roughly mean?

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  9. 9. MicroRNAs or miRNAs help to regulate gene expression by

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  10. 10. The “switches” on nucleosomes (histone spools) can be activated by all of these molecules EXCEPT:

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