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TLS Online TPP Program

#Question id: 760

Which force can stabilize a DNA double-helix?

#XL - Q Biochemistry

  1. Hydrophobic bases are found in the interior of the helix where each base pair is stabilized by the same number of hydrogen bonds.

  2. Hydrophilic sugar-phosphate groups are found on the exterior of the helix where they can interact with water.

  3. Non-covalent N-glycosidic bonds can form between nitrogenous bases in opposite strands in the helix.

  4. Covalent base-stacking interactions can occur between adjacent bases within the same strand in the helix.

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TLS Online TPP Program

#Question id: 170

#XL - T Zoology

Desmosine, an uncommon amino acid is derived from
TLS Online TPP Program

#Question id: 5076

#XL - T Zoology

Homeotic genes are responsible for:
TLS Online TPP Program

#Question id: 11919

#XL - T Zoology

Frequent disturbances could lead to failure of a community to reach a climax community as one seral stage keeps replacing itself, a condition known as
TLS Online TPP Program

#Question id: 357

#XL - S Microbiology

What is the concentration of H+ in a solution of 0.1 M NaOH?
TLS Online TPP Program

#Question id: 352

#XL - Q Biochemistry

One mole (mol) of glucose (molecular mass = 180 daltons) is ________.