The purines found in DNA are ________ and ________
A) cytosine; guanine
B) adenine; guanine
C) thymine; cytosine
D) adenine; cytosine
E) thymine; guanine
Answer: B
Anatomy & Physiology
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What will be an ideal response
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The pain of angina pectoris comes from a blockage in an artery that supplies the
A) neck and jaw. B) heart. C) sternum. D) left arm and shoulder.
Anatomy & Physiology
Some epiblast cells migrate and emerge between the epiblast and endoderm as a new germ layer called the ________.
A. primitive streak B. mesoderm C. notochord D. mesoglia E. yolk sac
Anatomy & Physiology