Practice Questions

TLS Online TPP Program

#Question id: 902

Which demonstrates that the primary structure of a protein determines its tertiary structure?

#Unit 1. Molecules and their Interaction Relevant to Biology

How the disulfide bonds hold it in the correct shape.
Proteins can refold even when the amino acid sequence is changed.
Proteins refold when the amino acid sequence is the same as in the native conformation.
Chaotropic agents cannot denature the native conformation.

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TLS Online TPP Program

#Question id: 5449

#Unit 8. Inheritance Biology

Most behavioral traits are affected by many different genetic influences as well as environment. The best descriptor for such traits is:

TLS Online TPP Program

#Question id: 29049

#Unit 10. Ecological Principles

Some given statements about anti freezing are given;

a. some invertebrates to withstand temperatures as low as –18°C without freezing, in presence of glycoproteins

b. Sodium, potassium, or chloride ions involve to increasing the blood freezing point, so the lack of these ions some species help to lower the blood freezing point

c. Amphibians release large amount of glucose into the blood to prevent freezing of blood in cold

d. Sodium, potassium or urea function as anti freezing in their blood

e. Glycine causes supercooling in plants

Which of the following statements about supercooling/anti freezing is correct?

TLS Online TPP Program

#Question id: 24627

#Unit 2. Cellular Organization

Rot values are expressed in term of

TLS Online TPP Program

#Question id: 11097

#Unit 7. System Physiology – Animal

The volume of air in the lungs following a complete exhalation of the expiratory reserve volume is

TLS Online TPP Program

#Question id: 4400

#Unit 3. Fundamental Processes

Which is the first factor to bind at the promoter of eukaryotic genes?

a. RNA polymerase

b. TFIIA

c. TFIIB

d. TFIID

e. TATA box–binding protein