43. In humans (2n =46), mitosis results in ____ and meiosis results in _____ Which of the following options correctly co

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43. In humans (2n =46), mitosis results in ____ and meiosis
results in _____ Which of the following options correctly completes
the sentence above?
A. 2 cells with 23 chromosomes; 4 cells with 46 chromosomes
B. 4 cells with 46 chromosomes; 2 cells with 23 chromosomes
C. 2 cells with 46 chromosomes; 4 cells with 23 chromosomes
D. 4 cells with 23 chromosomes; 2 cells with 46 chromosomes
44. A blood clot is composed of which of the following
components?
A. Platelets and fibrin
B. Erythropoietin and thrombin
C. Serum and albumin
D. Fibrinogen and globulin
45. The covalent bonds between the monomers of an enzyme
macromolecule are
A. glycosidic bonds.
B. peptide bonds.
C. phosphodiester bonds.
D. ester bonds.
46. If A represents atomic mass and Z represents atomic number,
which of the following describes an atom after a proton is emitted
from its nucleus?
A. A+ 1, Z + 1
B. A-1, Z-1
C. A+ 1, Z-1
D. A-1, Z + 1