The Experiment by Noll,1974,supported the Observation That Histones Were Regularly

question 11

Multiple Choice

The experiment by Noll,1974,supported the observation that histones were regularly spaced on chromosomes because

• A) digestion with increased amounts of DNase I resulted in one or a few bands.
• B) limited digestion with DNase I resulted in DNA fragments that differed in size by approximately 200 bp.
• C) digestion with low or high amounts of DNase I resulted in a fragment that was found at the bottom of the gel.
• D) a digestion performed with a moderate amount of DNase I gave results that were very similar to results obtained with higher amounts of DNase I.

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Definitions:

Thrombus

A blood clot that forms within a blood vessel or the heart and may cause vascular obstruction.

Thrombocytes

Another term for platelets, the blood cells that play a critical role in blood clotting.

Platelets

A type of blood cell that helps prevent bleeding by forming clots.

Lymph

A clear fluid that circulates through the body via lymphatic vessels, carrying white blood cells and removing bacteria and other waste products.