The Gram-negative opportunistic rod that can grow in a wide variety of environments, including disinfectants and soaps, is

A. E. coli.
B. S. aureus.
C. S. pyogenes.
D. P. aeruginosa.


D

Biology & Microbiology

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Cystic fibrosis is caused by the allele f, which is completely recessive to the normal dominant allele F. Consider a couple who both have the genotype Ff. What is the chance that their first child will develop cystic fibrosis?

A) 0% B) 25% C) 50% D) 75%

Biology & Microbiology

An atom's nucleus is composed of

A) protons and electrons. B) protons only. C) protons and neutrons. D) neutrons and electrons. E) neutrons only.

Biology & Microbiology

Which of the following is a RNA molecule?

A. XIST B. Barr Body C. CTCF D. HRE

Biology & Microbiology

Bacillus and Clostridium are medically relevant groups of bacteria that characteristically stain acid-fast

Indicate whether this statement is true or false.

Biology & Microbiology