Which of the following is not true of all naturally occurring DNA? A. Deoxyribose units are connected by 3',5'-phosphodiester bonds. B. The ratio A+T/G+C is constant for all natural DNAs. C. Two hydrogen bonds form between A and T. D. The two complementary strands are antiparallel. E. The amount of A always equals the amount of T.

DNA is constructed ofGroup of answer choicesa single strand of nucleotides with internal hydrogen bonding.two complementary strands of nucleotides bonded A—C and G—T.two strands of nucleotides running antiparallel.two strands of identical nucleotides with hydrogen bonds between them.None of the answers is correct.

Which of the following statements about DNA is incorrect?ANSWERThe alternating sugars and phosphate molecules of the DNA backbone bond together via phosphodiester bonds.DNA is a long, single-stranded molecule that curves into a helix, and the set pairings of the bases ensure that there is always a purine across from another purine and a pyrimidine across from another pyrimidine.The nitrogen base adenine always pairs with thymine, and guanine always pairs with cytosine.DNA has an antiparallel arrangement.

In a DNA molecule, ______ bonds form between nitrogenous bases, such that A (adenine) pairs with its complement ______, and G (guanine) pairs with its complement ______.Multiple choice question.hydrogen; T (thymine); C (cytosine)hydrogen; G (guanine); T (thymine)ionic; C (cytosine); T (thymine)ionic; T (thymine); G (guanine)

Which of the following is true of the DNA molecule? A. Vorm 'n dubbel heliks met twee komplimentêre stringe. / Forms a double helix of two complimentary strands B. Die suiker wat in die nukleotiede gevind word is ribose. / The sugar found in the nucleotides is ribose C. Nukleotiede sluit in adenien, guanien, sitosien en urasiel. / Nucleotides include adenine, guanine, cytosine, and uracil D. Al die bogenoemde. / All of the above

In DNA, Thymine and Adenine on two complementary strands are bonded together by ___________Group of answer choicesTwo Hydrogen bondsS-S covalent bondsThree Hydrogen bondsFour Hydrogen bonds