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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?

#SCPH05 I Biotechnology

  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: 19919

#SCPH01 Biochemistry

Scatchard plots are based on repeated equilibrium dialyses with a constant concentration of antibody and varying concentration of ligand. Which plots correctly verify the Scatchard equation that determined by equilibrium dialysis?
TLS Online TPP Program

#Question id: 14112

#SCPH01 Biochemistry

Proteomics refers to the study of __________.
TLS Online TPP Program

#Question id: 654

#I Life Science/ Life Sciences Group – I-V

Which pair represents different conformations?
TLS Online TPP Program

#Question id: 5744

#SCPH06 I Botany

The basic diploid chromosome number in Rye Secale cereale is 14. A new species of rye is found that has 28 chromosome species. This species is said to be
TLS Online TPP Program

#Question id: 566

#SCPH01 Biochemistry

The role of the metal ion (Mg2+) in catalysis by enolase is to