Found in secretions such as breast milk and saliva.

What will be an ideal response?


IgA

Biology & Microbiology

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People with aggamaglobulinemia do not make protective antibodies and suffer from recurrent, life threatening viral infections, but can develop normal immune responses to bacteria

Indicate whether the statement is true or false.

Biology & Microbiology

You wish to inhibit the contraction of muscle in vitro as a control for an experiment you are conducting. To do this, which of the following would you use?

A) dyneinase B) ATPase inhibitors C) mysoinase II D) contractionase E) serotonin

Biology & Microbiology

A cigarette smoker with lung cancer will not pass any smoking-induced lung cancer mutations to his children because the smoking-induced mutations

A. are in somatic cells. B. are in gametes. C. do not affect the phenotype of the lung cells. D. are in germ cells. E. are not in DNA.

Biology & Microbiology

Who introduced the "two-part" system (genus and species) that biologists use to name organisms?

A) Aristotle B) Linnaeus C) Whittaker D) Woese E) Darwin

Biology & Microbiology