Which of the Following Is Not a Piece of Evidence

question 39

Multiple Choice

Which of the following is not a piece of evidence that supports the radial loop-scaffold model of DNA packaging?

• A) Histone-depleted metaphase chromosomes still maintain their X-like shapes.
• B) Electron micrographs of whole-mounted mitotic chromosomes show loops of chromatin at the periphery of the chromosomes.
• C) Topoisomerase II assists in 100Å packaging.
• D) Special,irregularly spaced repetitive base sequences associate with nonhistone proteins to define the chromatin loops.
• E) All of the choices are such evidence.

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Definitions:

Withholding Information

The intentional act of keeping information secret or refusing to disclose it.

Ethical Problem

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