Of the following, which is the least likely to be involved in cell-mediated immunity?

A) antibodies
B) cytokines
C) macrophages
D) T cells


A) antibodies

Biology & Microbiology

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The accommodation of the very long DNA strands that are part of a chromosome into the limited space of the nucleus is achieved by coiling the DNA around beads of histones into repeating subunits. These DNA-wrapped histones are called:  

A.  Solenoids B.  Nucleosomes C.  Chromatin loops D.  Rosettes

Biology & Microbiology

Sterility of a laminar flow hood is accomplished by filter-sterilized air passed through the hood quickly enough that non-sterile air does not flow into the work area

Indicate whether the statement is true or false.

Biology & Microbiology

Which of the following types of media is not selective?

A) m-Staphylococcus Broth B) Blood Agar C) Mannitol Salt Agar

Biology & Microbiology

The major categories of hypersensitivities that typically involve a B-cell immunoglobulin response is/are

A. Type 1 only. B. Type 4 only. C. Type 1, Type 2, Type 3. D. Type 1 and Type 4. E. Type 1, Type 2, Type 3, and Type 4.

Biology & Microbiology