The RDAs (Recommended Dietary Allowances)for Nutrients Are Generally

question 13

Multiple Choice

The RDAs (Recommended Dietary Allowances) for nutrients are generally

• A)more than twice as high as anyone needs
• B)the minimum amounts that average people need
• C)designed to be adequate for almost all healthy people
• D)designed to prevent deficiency disease in half the population

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Definitions:

Phosphate

A chemical compound containing the phosphate ion, PO4^3-, which plays a critical role in biological systems, including energy transfer and the structure of DNA and RNA.

Backbone

The series of vertebrae extending from the skull to the tail in vertebrate animals, providing support and protecting the spinal cord.

Topoisomerases

Enzymes that relieve twists and kinks in a DNA molecule by breaking and rejoining the strands.

DNA Molecules

The carriers of genetic information in living organisms, consisting of two long chains of nucleotides twisted into a double helix.