DNA is a self-replicating molecule. What accounts for this important property of DNA?
A. Replication is thermodynamically spontaneous and requires no enzymes.
B. The nitrogenous bases of the double helix are paired in specific combinations: A with T and G with C.
C. Its two strands are held together by easily broken covalent bonds.
Answer: B. The nitrogenous bases of the double helix are paired in specific combinations: A with T and G with C.
You might also like to view...
Which of the following do airborne microorganisms and microorganisms on light-exposed surfaces use to protect themselves from photooxidation?
A. Catalase enzymes B. Superoxide dismutase C. Carotenoid pigments D. Peroxidase enzymes
Which of the following is formed last in the
transfer of solar energy? a. H+ b. excited electrons c. ATP d. O2 e. NADPH
The proximal convoluted tubule
A. reabsorbs most of the valuable materials that leave the glomerulus and enters the nephron. B. secretes ions into the nephron. C. simply conducts fluid to the loop of Henle. D. reabsorbs fats and proteins.
Glycolysis literally means
a. energy producing. b. Embden-Meyerhof. c. sugar producing. d. sugar splitting.