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TLS Online TPP Program

#Question id: 12917

Arrange the steps of stages in PCR in correct order.
1. The region to be specifically amplified is made accessible within the complex DNA.
2. The double stranded DNA is denatured by heating the reaction mixture to above 90 degree Celsius.
3. A thermal cycler is used to incrementally decrease the annealing temperature.
4. Reaction mixture is then cooled to a temperature between 40 and 60 degree celsius.

#Unit 13. Methods in Biology
  1. 1-2-3-4
  2. 2-1-4-3
  3. 4-3-2-1
  4. 3-4-1-2
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TLS Online TPP Program

#Question id: 5007

#Unit 11. Evolution and Behavior

Select the factor most likely to have caused the animals and plants of India to differ greatly from species in nearby Southeast Asia.
TLS Online TPP Program

#Question id: 459

#Unit 1. Molecules and their Interaction Relevant to Biology

Calculate △G°ʹ for the reaction shown if the mass action ratio, Q, is 5.3 × 102 M-1 and △G is 46 kJ/mol at a temperature of 298 K. (R = 8.315 J/K-mol)

ADP + Pi ⇌ ATP
TLS Online TPP Program

#Question id: 1381

#Unit 4. Cell Communication and Cell Signaling

Match each definition with given terms

1. Large family of structurally related, secreted, dimeric proteins that act as hormones and local mediators to control a wide range of biological functions in all animals.

A. Rho

2. Cell-surface receptor in which the cytoplasmic domain either has enzymatic activity itself or is associated with an intracellular enzyme.

B. TOR pathway

3. A crucial signaling protein in the PI-3-kinase–Akt signaling pathway, so named because it is the target of rapamycin.

C. Enzyme-coupled receptor

4. A kinase that is involved in intracellular signaling pathways activated by cell-surface receptors and that phosphorylates inositol phospholipids at the 3 position of the inositol ring.

D. Phosphoinositide 3-kinase

5. A group of monomeric GTPases that regulate both the actin and microtubule cytoskeletons.

E. (TGFβ) superfamily

6. Cytoplasmic tyrosine kinase present at cell–matrix junctions in association with the cytoplasmic tails of integrins.

F. Focal Adhesion Kinase

TLS Online TPP Program

#Question id: 24327

#Unit 4. Cell Communication and Cell Signaling

What is the major roles of Tight junctions in animal cells?
TLS Online TPP Program

#Question id: 27674

#Unit 1. Molecules and their Interaction Relevant to Biology

Zinc Finger Motif is characterised by