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

Which of the following statements about evolution is true? …

Which of the following statements about evolution is true?    A) Evolution only results in the addition of traits to existing organisms.    B) Evolution only results in the loss of traits from existing organisms.    C) Evolution can result in the addition or loss of traits in existing organisms.    D) Evolution has nothing to do with the addition or loss of traits.