Which of the following statements is true? (A) Flavr Savr tomatoes are still commercially succesful.
(B) A large percentage of US crops are currently genetically engineered.
(C) Glyphosate kills all plant life, even genetically altered plants.
(D) None of these are true.

B) A large percentage of US crops are currently genetically engineered.

yes? sounds right, but you didn’t ask a question.

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.