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Use the Following Information When Answering the Corresponding Question(s)

question 36

Multiple Choice

Use the following information when answering the corresponding question(s) .
Shu-ichi Nakano reported in Science in February 2000 that "the RNA enzyme (ribozyme) from hepatitis delta virus catalyzes self-cleavage of a . . . [chemical] . . . bond." This reaction is inherently slow due to the formation of an unfavorable negative charge on the ribozyme. The author goes on to show that this self-cleavage is made faster by joining it with an acid-base reaction that neutralizes the negative charge. Nakano's model describes a positively charged cytosine base on the ribozyme acting as the acid and magnesium hydroxide acting as the base. Specifically, the cytosine donates its proton (H+) to neutralize the unstable negative charge that would have formed on the ribozyme.
-Is Nakano's quote from Science consistent with the textbook's claim that RNA is a good candidate for the first life-form?

Understand the organization of body cavities and the associated serous membranes.

Describe the anatomical position and its significance in medical terminology.

Identify the location of organs within specific body regions or cavities.

Understand the relationship between anatomical structures in terms of proximity and orientation.

Definitions:

Freight

Goods transported in bulk by truck, train, ship, or airplane.

Net Proceeds

The amount of money received from a transaction after all costs and expenses have been paid.

Commission

A fee paid for services, usually a percentage of the total transaction, often used as a compensation method in sales and services industries.

Merchandise

Goods or products that are bought and sold in business.