Practice Questions

TLS Online TPP Program

#Question id: 10826

Gause's principle of competitive exclusion is, essentially,

#Unit 10. Ecological Principles

The more abundant species will exclude the less abundant species through competition
Competition for the same resources excludes species having different life styles
No two species can occupy the same niche indefinitely when resources are limited
Larger organisms exclude smaller ones through competition as in the case of large trees controlling underbrush

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TLS Online TPP Program

#Question id: 2339

#Unit 2. Cellular Organization

A busy student pours herself a cup of coffee and adds a sugar cube. A moment later the phone rings so she doesn't have time to stir it. Ten minutes later she returns to her coffee, and when she tastes it, it is obvious that the sugar has dissolved and that the coffee is uniformly sweet. What happened?

TLS Online TPP Program

#Question id: 23204

#Unit 13. Methods in Biology

Shadow casting is a technique in electron microscopy visualizing

TLS Online TPP Program

#Question id: 2629

#Unit 2. Cellular Organization

Case of constitutive mutants,

TLS Online TPP Program

#Question id: 3654

#Unit 3. Fundamental Processes

Cleavage of the cyclobutane ring of pyrimidine dimers by ______________ restores the original DNA structure.