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TLS Online TPP Program

#Question id: 1242

Rhodopsin, a light-sensitive GPCR whose role in vision is dependent on its phosphorylation status, is influenced in part by the protein arrestin.  Which of the following is TRUE with regard to rhodopsin and vision?

#Unit 4. Cell Communication and Cell Signaling

  1. Rhodopsin phosphatase increases the degree of rhodopsin phosphorylation.

  2. Arrestin binds to the completely phosphorylated opsin to inhibit signaling.

  3. Rhodopsin activation promotes the opening of a cGMP-gated ion channel.

  4. Arrestin binds to the completely dephosphorylated opsin to inhibit signaling.

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TLS Online TPP Program

#Question id: 23988

#Unit 1. Molecules and their Interaction Relevant to Biology

Suppose luckily you get an opportunity to serve the minority institution. The castism and narrow views are the rules of the place. As you are little bit having scientific outlook and you become prey of victimisation. How would you find yourself in a equilibrium in such an institution?
TLS Online TPP Program

#Question id: 23989

#Unit 1. Molecules and their Interaction Relevant to Biology

If your principal indulges in corruption and forces you to co-operate, how would you make compromise with such a superior fellow?
TLS Online TPP Program

#Question id: 809

#Unit 1. Molecules and their Interaction Relevant to Biology

A single-stranded DNA molecule contains 40 nucleotides with equal amounts of A, C, G, and T. This DNA strand can combine with a complementary DNA strand to form a double-stranded DNA molecule. Which of the following double-stranded DNA molecules would denature at a lower temperature than the 40 base-pair double-stranded molecule described above?
TLS Online TPP Program

#Question id: 808

#Unit 1. Molecules and their Interaction Relevant to Biology

Which, if any, of the following statements is false?
TLS Online TPP Program

#Question id: 807

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following forces can stabilize a normal DNA double-helix?
TLS Online TPP Program

#Question id: 806

#Unit 1. Molecules and their Interaction Relevant to Biology

A single-stranded DNA molecule contains 40 nucleotides with equal amounts of A, C, G, and T. This DNA strand can combine with a complementary DNA strand to form a double-stranded DNA molecule. Which characteristic does this double-stranded molecule have when it forms a B-DNA structure?