Express the Sum 1

question 45

Multiple Choice

Express the sum 1.00 kg + 1531 g + 2.54 × 10⁴ mg in kilograms with the correct number of significant figures.

• A)2.56 kg
• B)27.9 kg
• C)2.53 kg
• D)2.79 kg

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Definitions:

Protein Structure

The specific three-dimensional arrangement of amino acids in a protein, determining its function and activity, includes primary, secondary, tertiary, and quaternary structures.

Exons

Segments of a DNA or RNA molecule containing information coding for a protein or peptide sequence.

Introns

Noncoding sections of an RNA transcript, or the DNA encoding it, that are removed before the RNA molecule is translated into a protein.

Promoter

In an operon, a sequence of DNA where RNA polymerase binds prior to transcription.