Each DNA strand has a backbone that consists
of alternating
a. covalent and ionic bonds.
b. nitrogen-containing bases.
c. hydrogen bonds.
d. sugar and phosphate molecules.
e. covalent and hydrogen bonds.
D
Biology & Microbiology
You might also like to view...
The process of cell division in a prokaryotic cell is called:
A. binary fusion. B. mitosis. C. binary fission. D. cytokinesis.
Biology & Microbiology
The main hypothesis about the origin of the first living organisms is called ________.
A. novel design B. biogenesis C. panspermia D. chemo-evolution
Biology & Microbiology
Where does the citric acid cycle take place?
What will be an ideal response?
Biology & Microbiology
Which of the following has the smallest size?
A neutron A molecule of glucose An atom of oxygen A cell
Biology & Microbiology