Questions on nucleus and DNA doc

Questions on nucleus and DNA doc - Structure of the Nucleus...

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Structure of the Nucleus and Chromatin 1. What are lamins, how are lamins related to nuclear structure and how does their structure change during the cell cycle. What modification causes them to assemble and disassemble. 2. What is the nucleolar organizer and how does it relate to the nucleus. A. What does the nucleolus do? B. What kinds of genes are in the nucleolar organizer? 3. How are substances transported in and out of the nucleus. A. When is a carrier not needed. The nuclear carrier into the nucleus is importin. B. What determines whether a protein will bind to importin or not? C. What is the NLS D. What is the role of ran, ran GEFs and ran GAPs? 4. What is the difference between euchromatin, constitutive heterochromatin and facultative heterochromatin? How does the Barr body and X chromosome inactivation reflect the states chromatin? How does histone H1 participate in Chromosome structure? 5. What are the various levels of chromosome packing?
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Questions on nucleus and DNA doc - Structure of the Nucleus...

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