86) The chemical bond connecting one nucleotide to the next…

86) The chemical bond connecting one nucleotide to the next along one strand of a DNA molecule is called a A) peptide bond.                                       B) phosphate bond. C) glycosidic bond.                                  D) phosphodiester bond.

60) Macromolecules that are used by most organisms to store…

60) Macromolecules that are used by most organisms to store hereditary information are called: A) transfer RNA molecules.                             B) DNA molecules. C) proteins.                                                                D) ribosomal RNA molecules.

The two oxygen atoms in oxygen gas (O2) share four electrons…

The two oxygen atoms in oxygen gas (O2) share four electrons forming a _____.  A)  hydrogen bond                                                            B)  double covalent bond C)  single covalent bond                                                 D)  triple covalent bond