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

Multiple Choice

Which of the following statements about the 5' end of a polynucleotide strand of RNA 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 nitrogenous base attached to the number 5 carbon of ribose.