1. Autoimmunity may be defined as: a. a specific acquired immunity in which inte

ID: 56941 • Letter: 1

Question

1. Autoimmunity may be defined as:

a. a specific acquired immunity in which interleukins control the process of foreign body destruction

b. a specific humoral or cell-mediated immune response against the constituents of one s own body

c. a specific acquired immunity in which T lymphocytes are involved

2. Which of the following definitions is correct?

a. Mitosis requires nondisjunction for proper cell division.

b. Replication requires separation of DNA strands with subsequent synthesis of new RNA.

c. Translation requires conversion of RNA codons into amino acids during protein synthesis.

d. Transcription requires separation of RNA strands and with subsequent synthesis of new DNA.

3. Which of the following is NOT a general mechanism by which a chemical can induce toxicity?

a. interference with membrane functions

b. interference with distribution throughout the body

c. interference with cellular energy production

d. interference with normal receptor-ligand interactions

e. an increased responsive state acquired through previous exposure to an antigen

The skin:

a. is a fairly permeable barrier to environmental toxicants

b. is fairly static as stratum corneum cells typically are not replaced

c. is not responsive to UV light

d. is in a constant state of change as stratum corneum cells typically are replaced monthly

The correct answer is option (b).

Autoimmunity may be defined as: a specific humoral or cell-mediated immune response against the constituents of one’s own body

2).

The correct answer is option (c) Translation requires conversion of RNA codons into amino acids during protein synthesis.

3).The correct answer is option (b)

4).The correct answer is option (d)

The correct answer is option (b).

Autoimmunity may be defined as: a specific humoral or cell-mediated immune response against the constituents of one’s own body

2).

The correct answer is option (c) Translation requires conversion of RNA codons into amino acids during protein synthesis.

3).The correct answer is option (b)

4).The correct answer is option (d)

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