The Gel Shown Above Includes a DNA Ladder That Can

question 25

Multiple Choice

The gel shown above includes a DNA ladder that can be used to estimate the sizes of DNA molecules.The ladder increases in 100 nucleotide increments,from 100 to 700.Four DNA molecules have been separated on this gel (labeled A to D) What is the approximate size of DNA molecule A?

• A)250 nucleotides
• B)300 nucleotides
• C)350 nucleotides
• D)400 nucleotides

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