DNA Is a Double-Stranded Nucleic Acid That Exists as a Double

question 12

Multiple Choice

DNA is a double-stranded nucleic acid that exists as a double helix. Which is responsible for holding the double helix of DNA together?

• A)Phosphodiester bonds between complementary base pairs on each strand
• B)β-N-glycosidic linkages between the sugar-phosphate backbone of each strand
• C)Disulfide bonds between the cysteine residues on each strand
• D)Hydrogen bonding between complementary bases on each strand

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Definitions:

Yeast Cells

Single-celled fungi that are important for fermentation in baking and brewing.

Personal Protective Equipment

Equipment worn to minimize exposure to hazards that can cause injuries and illnesses in the workplace, including gloves, masks, and goggles.

Medical Assistant

An allied health professional who supports the work of physicians and healthcare practitioners by undertaking various clinical and administrative tasks.

Supernatant

The liquid portion of a substance from which solids have settled to the bottom, as with a urine specimen after centrifugation.