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TLS Online TPP Program

#Question id: 333

Which of the following feature of RNA adds to its propensity to form double-helical structure?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. Watson-Crick base pairing between A:U base pair which has hydrogen bonds between N6 of adenine and C4 of uracil, and between N1 of adenine and N3 of uracil.

  2. Non Watson-Crick base pairing between G:U base pair, which has hydrogen bonds between N3 of uracil and the C6 of guanine, and between the C2 of uracil and N1 of guanine.

  3. Non Watson-Crick base pairing between G:U base pair, which has hydrogen bonds between N3 of guanine and the C6 of uracil, and between the C2 of uracil and N1 of guanine.

  4. Watson-Crick base pairing between A:U base pair which has hydrogen bonds between N6 of uracil and C4 of adenine, and between N1 of adenine and N3 of uracil.

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TLS Online TPP Program

#Question id: 12652

#Unit 6. System Physiology – Plant

Which of the following two organelles participate in jasmonate biosynthesis;
TLS Online TPP Program

#Question id: 28183

#Unit 5. Developmental Biology

Dreisch conclude that if separate 4 cells than each cells has the capacity to develop a normal larvae, the mode of specification is known as___
TLS Online TPP Program

#Question id: 4264

#Unit 3. Fundamental Processes

A classic biochemical experiment nicely illustrated the point that the ribosome recognizes tRNA and not the amino acid that it is carrying. In that following observation were made. Which of them can be correct.

A. The cysteine attached to cysteine-tRNACys can be converted to an alanine by chemical reduction to give alanine-tRNACys.

B. Alanine-tRNACys introduces alanines at codons that specify insertion of cysteine.

C. Different mechanism is used to incorporate selenocyteine on tRNA as selenocysteine is incorporated into proteins by chemical modification after translation

D. Selenocysteine is generated enzymatically from serine carried on a special tRNA that is charged by serine-tRNA synthetase

E. Above examples can conclude that the translation machinery relies on the high fidelity of the aminoacyl-tRNA synthetases to ensure the accurate decoding of each mRNA
TLS Online TPP Program

#Question id: 8845

#Unit 9. Diversity of Life Forms

The experimental approach taken in current biological investigations presumes that
TLS Online TPP Program

#Question id: 27226

#Unit 1. Molecules and their Interaction Relevant to Biology

The Protein Components of the Mitochondrial Electron-Transfer Chain match them correctly with their prosthetic groups