Which of the Following Statements About the 5' End of a Polynucleotide

question 92

Multiple Choice

Which of the following statements about the 5' end of a polynucleotide strand of DNA is correct?

• A) The 5' end has a hydroxyl group attached to the number 5 carbon of ribose.
• B) The 5' end has a phosphate group attached to the number 5 carbon of ribose.
• C) The 5' end has phosphate attached to the number 5 carbon of the nitrogenous base.
• D) The 5' end has a carboxyl group attached to the number 5 carbon of ribose.
• E) The 5' end is the fifth position on one of the nitrogenous bases.

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