In the year 2317, a group of human pioneers decide to colonize Mars. The distance between Mars and Earth prevents the possibility of new members joining the colony or the members of the colony interbreeding with humans on Earth

This situation is an example of A) extinction.
B) the bottleneck effect.
C) random mutation.
D) continental drift.
E) the founder effect.


E

Biology & Microbiology

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The Km for enzyme Q is 1 × 10-6 M. Q catalyzes the reaction R?S at a velocity of 30 µmole/min when the concentration of substrate is 0.02 M; hence, Vmax is approximately 30 µmole/min

Assuming Michaelis-Menten kinetics is followed, what will the reaction velocity be when [S] is 10-7 M? A. 30 µmole/min B 3.0 × 10-7 µmole/min C. 2.7 µmole/min D. 2.7 × 10-12 µmole/min E. 0.27 µmole/min

Biology & Microbiology

Approximately what percentage of hospitalized patients may develop a nosocomial infection?

A. 0% B. 5% C. 20% D. 70%

Biology & Microbiology

In order for successful antibiotic therapy, the in vivo level of the antibiotic must be greater than or equal to the MIC.

Answer the following statement true (T) or false (F)

Biology & Microbiology

What feature do the carbon and nitrogen cycles have in common?

A. often a limiting nutrient B. involvement in global climate change C. mostly local cycling D. many microbes involved in cycling E. a large atmospheric component

Biology & Microbiology