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TLS Online TPP Program

#Question id: 1363

Which of the following statements best describes the difference between low-affinity integrins and high-affinity integrins?

#Section 3: Genetics, Cellular and Molecular Biology

  1. Many integrins can exist in two conformations: a low-affinity (bent) conformation and a high-affinity (straight) conformation.

  2. Dissociation of the alpha beta heterodimer converts many integrins from the low-affinity to the high-affinity state.

  3. Association of the alpha beta heterodimer converts many integrins from the low-affinity to the high-affinity state.

  4. Proteolytic cleavage of the C-terminal tails of the two subunits converts many integrins from the low-affinity to the high-affinity state.

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TLS Online TPP Program

#Question id: 12945

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

It is a PCR based multiplex assay that allows a number of target sites such as deletions, duplications, mutations to be amplified with a pair of primer containing probes.
TLS Online TPP Program

#Question id: 12946

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Choose the incorrect statement for the Multiple Ligation dependent probe amplification.
TLS Online TPP Program

#Question id: 12947

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Match the following-

A. G- proteins.1. src
B. Growth factors.2. erbB
C. Protein kinases.3. N-ras
D. Growth factor receptor.4. hst
TLS Online TPP Program

#Question id: 12948

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Proteolytic cleavage of DNA polymerase by subtilisin caused loss of its nick translation activity. Which of the following properties is lost?
TLS Online TPP Program

#Question id: 12989

#Section 2: General Biology

Choose the correct statement related to hydrogen bond and Van der Waals interactions
a. Hydrogen bond formation takes place between dipole-dipole interaction.
b. Van der waals interaction takes place between induced dipole-induced dipole.
c. Hydrogen bond formation takes place between induced dipole-induced dipole.
d. Van der waals interaction takes place between dipole-dipole interaction.
TLS Online TPP Program

#Question id: 12991

#Section 2: General Biology

Choose the correct statements
a. Secondary structures are stabilized by hydrogen bonds.
b. Hydrogen bond always formed between non bonded atoms.
c. the folded length of an amino acid in α-helix reduced almost 3 times than linear structure.
d. Only dihedral angle changes during the formation of secondary structure while bond length remains unchanged