Practice Questions

TLS Online TPP Program

#Question id: 16100

Heat-loss mechanism:

#Unit 7. System Physiology – Animal

by radiation and convection increase when the ambient temperature decreases
by evaporation; depend on the activity of sweat glands being under sympathetic muscarinic control
are controlled by the anterior hypothalamus
cause an increase in sympathetic tone to skin blood vessels

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TLS Online TPP Program

#Question id: 27506

#Unit 2. Cellular Organization

A DNA with a initial LK no = 100 is change to 95

TLS Online TPP Program

#Question id: 27505

#Unit 2. Cellular Organization

Which of the amino acid residue are found in active site of topoisomerases

TLS Online TPP Program

#Question id: 27504

#Unit 2. Cellular Organization

Which kind of catalysis are used by the topoisomerases

TLS Online TPP Program

#Question id: 27503

#Unit 2. Cellular Organization

Bacterial DNA are atchitected in form of loop sized with

TLS Online TPP Program

#Question id: 26483

#Unit 2. Cellular Organization

lac repressor binds to

TLS Online TPP Program

#Question id: 26481

#Unit 2. Cellular Organization

Which of the following are the characteristics of prokaryotic operator O1

a. Made up of 21-bp sequence

b. It has twofold/dyad symmetry

c. Recognized by two subunits of Lac repressor

d. On each O1 four unit of Lac repressor binds