TLS Online TPP Program

#Question id: 11979


A female cat in heat urinates more often and in many places. Male cats congregate near the urine deposits and fight with each other. Which of the following is a proximate cause of this behaviour of increased urination?

#Unit 10. Ecological Principles
  1. It announces to the males that she is in heat.
  2. Female cats that did this in the past attracted more males.
  3. It is a result of hormonal changes associated with her reproductive cycle. 
  4. The female cat learned the behavior from observing other cats.
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TLS Online TPP Program

#Question id: 1634

#Unit 4. Cell Communication and Cell Signaling

What is the main reason an experimental animal treated with X-rays can act as a living test tube for lymphocyte transfer experiments?

TLS Online TPP Program

#Question id: 2246

#Unit 2. Cellular Organization

Which of the following statements describe(s) the typical biomembrane?

a. It may include different types of lipid molecules.

b. The lipid molecules in the membrane are attached to each other though covalent bonds.

c. All lipids and proteins in the biomembrane are equally mobile.

d. It contains a hydrophilic core.

e. It has a cytosolic face and an exoplasmic face.

TLS Online TPP Program

#Question id: 29105

#Unit 8. Inheritance Biology

If two set of chromosome is considered in G1 phase, then at which phase of the cell cycle, the no of chromosome as well as no of DNA cell both are doubled?

TLS Online TPP Program

#Question id: 4320

#Unit 3. Fundamental Processes

Forms of the Ras protein found in tumors usually cause which of the following events to occur?

TLS Online TPP Program

#Question id: 868

#Unit 1. Molecules and their Interaction Relevant to Biology

Which statements is incorrect about ‘The chaperonin-assisted catalysis of protein folding’

A. The non-cooperative nature of ATP binding establishes GroEL as an allosteric enzyme.

B. In GroEL with a total of 14 subunits in two heptameric rings are observed.

C. In vivo GroES is composed of seven identical subunits whilst GroEL is composed of 14 larger subunits.

D. Gro-EL being called chaperonin60 (cpn60) and Gro-ES chaperonin10 (cpn10).