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TLS Online TPP Program

#Question id: 787

Which of the following statement is INCORRECT with respect to the structure of DNA?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. Six adenosines in a row in a DNA helix produce a bend of about 18 degrees.

  2. DNA was first isolated and characterized by Friedrich Miescher who called the phosphorus-containing substance “nuclein.”

  3. It is the pentoses that define the identity of a nucleic acid not the nitrogenous bases.

  4. The Z-DNA tracts do not play any role in regulating the expression of some genes or in genetic recombination.

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TLS Online TPP Program

#Question id: 5222

#Unit 11. Evolution and Behavior

 When does exon shuffling occur?
TLS Online TPP Program

#Question id: 15460

#Unit 2. Cellular Organization

During which phase of growth are bacteria most susceptible to antibiotics?
TLS Online TPP Program

#Question id: 10309

#Unit 6. System Physiology – Plant

Which of the following carbon compound also called the oxoglutarate? 
TLS Online TPP Program

#Question id: 3653

#Unit 3. Fundamental Processes

Cyclobutane pyrimidine dimers are formed by -------------from adjacent pyrimidines on one strand by cyclization of the double-bonded C5 and C6carbon atoms of each base to give a cyclobutane ring.
TLS Online TPP Program

#Question id: 24028

#Unit 1. Molecules and their Interaction Relevant to Biology

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