Practice Questions

TLS Online TPP Program

#Question id: 760

Which force can stabilize a DNA double-helix?

#SCPH28 | Zoology

Hydrophobic bases are found in the interior of the helix where each base pair is stabilized by the same number of hydrogen bonds.
Hydrophilic sugar-phosphate groups are found on the exterior of the helix where they can interact with water.
Non-covalent N-glycosidic bonds can form between nitrogenous bases in opposite strands in the helix.
Covalent base-stacking interactions can occur between adjacent bases within the same strand in the helix.

More Questions

TLS Online TPP Program

#Question id: 815

#SCPH01 Biochemistry

The cis conformation shows Cα atoms are on the same side of the peptide bond, is ∼8 kJ mol−1 less stable than the trans conformation. Why?

TLS Online TPP Program

#Question id: 27823

#Research Methodology

In a research study, if a correlation coefficient between two variables is -0.75, what does this value indicate?

TLS Online TPP Program

#Question id: 297

#SCPH28 | Zoology

The boiling point of water is exceptionally high because

TLS Online TPP Program

#Question id: 3008

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

The structures present in the hay infusions used in experiments on spontaneous generation that made them difficult to sterilize are

TLS Online TPP Program

#Question id: 9170

#SCPH28 | Zoology

Which of the following is an important feature of most terrestrial biomes?