Antibody diversity can be explained by ________.

A. antibody-gene recombinations and mutations
B. mutation of pathogens
C. the fact that many different genes encode for the different antibody chains
D. clonal production of plasma cells


Answer: A

Anatomy & Physiology

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The reaction by which lactate is formed from pyruvate is catalyzed by lactate ________.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

Rickets is a condition marked by a softening and bending of bones that occurs in growing children, as a result of ________ deficiency.

A) vitamin A B) vitamin D3 C) growth hormone D) vitamin C E) thyroid hormone

Anatomy & Physiology

Sympathetic preganglionic axons

A. can synapse in terminal ganglia. B. must synapse in parasympathetic ganglia. C. can synapse with cells in the adrenal cortex. D. can synapse in the dorsal root ganglion. E. can synapse in either chain or collateral ganglia.

Anatomy & Physiology

The stomach, spleen, and some of the large intestine together are located in which region?


A) 5
B) 4
C) 1
D) 7
E) 6

Anatomy & Physiology