Which of the following is an enzyme that breaks hydrogen bonds?
a. helicase
b. telomerase
c. DNA polymerase
d. DNA ligase
a. helicase
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One of the waste products that accumulates during cellular functions is carbon dioxide. It is removed via the respiratory system. What is another waste product that accumulates during normal physiological functions in vertebrates?
I) ammonia II) uric acid III) urea A) only I and III B) only II and III C) only I and II D) I, II, and III
The synthesis of sugar molecules through the process of photosynthesis requires energy absorbed from sunlight. Bearing this in mind, what kind of reaction is photosynthesis?
A. exergonic B. endergonic C. catabolic D. feedback
A cloning vector often used to introduce a foreign gene into a bacterium is a(n) ________
a. DNA chip b. plasmid c. operon d. transgenic organism
Which of the following describes the labia?
A. The labia majora are hairless folds of skin. B. The labia minora are covered with pubic hair. C. The clitoral hood is formed by the labia majora. D. The Bartholin glands lie inside the labia minora.