Answered: ✓ Treatment with high concentrations of…

✓ Treatment with high concentrations of micrococcal nuclease (Mnase) ✓ Low Salt ✓ Absence of Histone H1 ✓ High Salt I. Individual nucleosomes II. 10 nm Fiber III. 30 nm Fiber

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter2: Cells And Cell Division

Section: Chapter Questions

Problem 4QP: Define the following terms: a. chromosome b. chromatin

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Question

The picture below depicts electron micrographs of the major levels of chromatin structure. Match each of the listed conditions with the most likely levels of chromatin structure under that condition.

I
✓ Treatment with high concentrations of
micrococcal nuclease (Mnase)
✓ Low Salt
✓ Absence of Histone H1
✓ High Salt
I. Individual nucleosomes
II. 10 nm Fiber
III. 30 nm Fiber

listed conditions with the most likely levels of chromatin structure under that condition.
(A)
(B)
(C)
nucleosome
nucleosome
DNA
30 nm fibers
10 nm fibers
:"beads on a
string"
Individual
nucleosomes

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