Practice Questions

TLS Online TPP Program

#Question id: 12986

Infant mortality and life expectancy at birth in developed and developing countries.

What is a logical conclusion that can be drawn from the graphs above?

#Unit 10. Ecological Principles

Developed countries have lower infant mortality rates and lower life expectancy than developing countries.
Developed countries have higher infant mortality rates and lower life expectancy than developing countries.
Developed countries have lower infant mortality rates and higher life expectancy than developing countries.
Developed countries have higher infant mortality rates and higher life expectancy than developing countries.

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TLS Online TPP Program

#Question id: 28058

#Unit 1. Molecules and their Interaction Relevant to Biology

The strong conclusion from Anfinsen's work on RNaseA was that

TLS Online TPP Program

#Question id: 28059

#Unit 1. Molecules and their Interaction Relevant to Biology

Treatment of RNaseA with 8M urea, but without adding mercaptoethanol would

TLS Online TPP Program

#Question id: 28060

#Unit 1. Molecules and their Interaction Relevant to Biology

The peptide bond in proteins is

TLS Online TPP Program

#Question id: 28061

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following force/Bonds contributes to protein stability

a. van der Waals interactions

b. Ionic interaction

c. Hydrogen bond

d. Di-sulphide bond

TLS Online TPP Program

#Question id: 28062

#Unit 1. Molecules and their Interaction Relevant to Biology

Thermostable proteins are stable at high temperature due to

a. Vander Waals interaction

b. Ionic bond only

c. High protein’s hydrophobic core

d. high incidence of salt bridges

Which of the following is correct

TLS Online TPP Program

#Question id: 28063

#Unit 1. Molecules and their Interaction Relevant to Biology

Characteristics of Thermostable proteins are

a. loosely packed core as evidenced by a high surface-to-volume ratio.

b. High amounts of Arg

c. High amount of Ala in helices

d. Stable at high temperature due to High protein’s hydrophobic core and high incidence of salt bridges