Practice Questions

TLS Online TPP Program

#Question id: 1021

Disease Control (CDC) determine that the agent causing the birds to die is the West Nile virus. Outbreaks of this illness have been observed in several other countries in Asia and the Middle East across the last 50 years, but not in the United States. With this information, what would be the best categorization of this infectious agent/disease

#SCPH06 I Botany

This is clearly a reemerging infection. It's been around for a long time, and it is reappearing in a susceptible population again.
This is clearly a nosocomial infection. It's transmitted from animals to human beings in urban environments.
This is clearly an emerging infection. It hasn't been around that long, and it has made a jump across continents into a new susceptible population.
This is clearly not a concern to human beings--maybe it's emerging in animals, maybe it's reemerging, maybe it's nosomial. But who cares? It's only in birds.

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TLS Online TPP Program

#Question id: 403

#SCPH05 I Biotechnology

For the reaction A -> B, DG'° = –60 kJ/mol. The reaction is started with 10 mmol of A; no B is initially present. After 24 hours, analysis reveals the presence of 2 mmol of B, 8 mmol of A. Which is the most likely explanation?

TLS Online TPP Program

#Question id: 15701

#SCPH05 I Biotechnology

In a sequence logo of the type given below, the sizes of the letters are proportional to the:

TLS Online TPP Program

#Question id: 12103

#SCPH28 | Zoology

Which of the following is a good description of an ecological niche?

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#Question id: 8907

#SCPH28 | Zoology

The endoskeletons of most vertebrates are composed of calcified