General Principles for Medicine III - Lecture 2

Which of the following is an example of a genotypic characteristic?

• Organism morphology

• Housekeeping gene sequence

• Cell structure

• Membrane composition

What type of nucleic acid do viruses have?

• DNA only

• RNA only

• DNA and RNA

• DNA or RNA (but not both)

What type of microorganism causes athlete’s foot?

• Virus

• Prion

• Bacterium

• Fungus

What are the three most common cell shapes of bacterial pathogens?

• Spherical, rod-shaped & spiral-shaped

• Spherical, rod-shaped & icosahedral

• Spherical, spiral-shaped & icosahedral

• Rod-shaped, spiral-shaped & icosahedral

Which of the following structures enables bacteria to avoid phagocytosis?

• Somatic antigen

• Lipoteichoic acid

• Capsule

• Porin protein

Vancomycin acts by inhibiting cell wall synthesis. Which of the following bacteria will be resistant to this antibiotic?

• Staphylococcus

• Streptococcus

• Mycoplasma

• Corynebacterium

Which of the following attributes enables Bacillus cereus to survive boiling at 100°C?

• Polypeptide capsule

• Endospore

• Slime layer

• Flagella