What Forms the "Backbone" of a Nucleic Acid

question 1

Multiple Choice

What forms the "backbone" of a nucleic acid?

• A) purine and pyrimidine pairs, hydrogen- bonded to each other
• B) a chain of sugar and phosphate groups, linked through phosphodiester bonds
• C) a double helix of antiparallel strands
• D) a chain of amino and carboxyl groups, linked via peptide bonds

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Definitions:

Hypothesis

A proposed explanation for a phenomenon, made as a starting point for further investigation, that can be tested through experimentation and observation.

Operational Definition

A clear, precise description of a variable in terms of the procedures used to measure or manipulate it in a research study.

Anxiety

A feeling of worry, nervousness, or unease, typically about an imminent event or something with an uncertain outcome.

Empirically Tested

Evaluated or tested based on observations or experience rather than theory or pure logic.