________ opens up one segment of the DNA helix during replication; ________adds complementary free nucleotides to the exposed DNA strand.

A. DNA helicase; DNA polymerase
B. DNA helicase; DNA ligase
C. DNA ligase; DNA polymerase
D. DNA polymerase; DNA ligase
E. DNA ligase; DNA helicase


Answer: A

Anatomy & Physiology

You might also like to view...

The function of gustatory receptors parallels that of

A) photoreceptors in the eye. B) mechanoreceptors in the ear. C) olfactory receptors. D) lamellar corpuscles. E) proprioceptors.

Anatomy & Physiology

What is the primary regulatory mechanism that maintains glomerular filtration rate (GFR)?

a) renin-angiotensin system b) autoregulation c) autonomic regulation d) natriuretic peptides

Anatomy & Physiology

Which of the following blood cells are the main soldiers in the immune system defense of the body against microbial invaders?

a) Eosinophil b) Macrophage c) Lymphocyte d) Basophil e) Platelet

Anatomy & Physiology

An adult with third-degree burns over 15% of their body would NOT be considered critical.

Answer the following statement true (T) or false (F)

Anatomy & Physiology