Practice Questions

TLS Online TPP Program

#Question id: 27642

Choose the incorrect statement regarding β-turns

#Unit 1. Molecules and their Interaction Relevant to Biology

Type I turns are more common than type II
Proline fits best in the 3 position of the type I turn
In the type II turn, proline is preferred at the 3 position, whereas the 2 position prefers glycine or small polar residues.
In the type II turn, proline is preferred at the 2 position, whereas the 3 position prefers glycine or small polar residues.

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TLS Online TPP Program

#Question id: 9197

#Unit 9. Diversity of Life Forms

What is the biological significance of genetic diversity between populations?

TLS Online TPP Program

#Question id: 26821

#Unit 10. Ecological Principles

We can represent the relationship of species richness to area with the equation

Where S = number of species, and c and z are both constants

Which of the following is not a logical explanation to relationship of species richness to area?

TLS Online TPP Program

#Question id: 17654

#Unit 13. Methods in Biology

The protein concentration in DNA extraction sample measured by

TLS Online TPP Program

#Question id: 30084

#Unit 2. Cellular Organization

Drosophila is considered a model system because it is quite easy to create transgenic lines harboring a variety of different genes. As a Drosophila geneticist, which one of the following is a DNA transposon that you would exploit to create a transgenic line?

TLS Online TPP Program

#Question id: 11336

#Unit 10. Ecological Principles

Which of the following is NOT a prediction arising out of Wilson-MacArthur's -Theory of Island Biogeography?