Which of the following specimens should NOT be refrigerated if it cannot be processed immediately?

A. CSF
B. Sputum
C. Wound swab
D. Urine


Ans: A. CSF

Biology & Microbiology

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In the eukaryotic DNA sequence below, which type of repeat is highlighted?

A. tandem repeat B. dispersed repeat C. simple sequence repeat D. long terminal repeat E. short terminal repeat

Biology & Microbiology

Given the following components of the cardiac conduction cycle, which one of the following best describes the movement of the stimulus that causes a heart contraction? A. atrioventricular bundle B. sinoatrial node C. atria D

atrioventricular node E. Purkinje fibers F. ventricles A) B, C, D, A, E, F B) B, D, A, C, E, F C) D, A, E, F, B, C D) A, D, E, B, C, F E) B, C, D, F, A, E

Biology & Microbiology

What is the term given to a random subset of individuals who are selected for measurement in a particular study?

A) controls B) sample C) placebos D) representatives

Biology & Microbiology

How is alcohol classified?

A. stimulant B. psychoactive C. inhibitor D. depressant E. none of these

Biology & Microbiology