Practice Questions

TLS Online TPP Program

#Question id: 910

Experiments on denaturation and renaturation after the reduction and reoxidation of the —S—S— bonds in the enzyme ribonuclease (RNase) have shown that:

#Unit 1. Molecules and their Interaction Relevant to Biology

folding of denatured RNase into the native, active conformation, requires the input of energy in the form of heat.
native ribonuclease does not have a unique secondary and tertiary structure.
the completely unfolded enzyme, with all —S—S— bonds broken, is still enzymatically active.
the primary sequence of RNase is sufficient to determine its specific secondary and tertiary structure.

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TLS Online TPP Program

#Question id: 15604

#Unit 12. Applied Biology

The bacteria which cause septicaemia are fast becoming resistant to the antibiotics used for controlling them. Which one of the following explanations fits best?

TLS Online TPP Program

#Question id: 3494

#Unit 11. Evolution and Behavior

Which of the following is a disadvantage of group living for many species?

a. Competition between individuals for resources is increased

b. It can reduce predator success

c. It can reduce reproductive success

d. It increased transmission of parasites and other diseases

TLS Online TPP Program

#Question id: 23331

#General Aptitude

Generally variable are of

TLS Online TPP Program

#Question id: 11038

#Unit 7. System Physiology – Animal

Which of the following substances in plasma is the major factor that contributes to plasma colloid osmotic pressure?

TLS Online TPP Program

#Question id: 19306

#Unit 12. Applied Biology

35S promoter sequence is derived from which plant virus