Practice Questions

TLS Online TPP Program

#Question id: 760

Which force can stabilize a DNA double-helix?

#Part-B Specialized Branches in Biotechnology

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: 21009

#Part-B Specialized Branches in Biotechnology

Acetobacter aceti converts alcohol to acetic acid according to the stoichiometric relation

C₂H₅OH + O₂ → CH₃COOH + H₂O

In a vigorously agitated and aerated reactor containing 20 g/l ethanol, the organism produces 16 g/l acetic acid and 2 g/l was the residual ethanol concentration. What are the theoretical and observed yields of acetic acid expressed in g/g ethanol?

TLS Online TPP Program

#Question id: 21009

#Part-A Aptitude & General Biotechnology

Acetobacter aceti converts alcohol to acetic acid according to the stoichiometric relation

C₂H₅OH + O₂ → CH₃COOH + H₂O

In a vigorously agitated and aerated reactor containing 20 g/l ethanol, the organism produces 16 g/l acetic acid and 2 g/l was the residual ethanol concentration. What are the theoretical and observed yields of acetic acid expressed in g/g ethanol?

TLS Online TPP Program

#Question id: 21010

#Part-B Specialized Branches in Biotechnology

During a batch culture experiment, the following data was obtained

What will be the product yield (g) per gram of substrate?

TLS Online TPP Program

#Question id: 21011

#Part-B Specialized Branches in Biotechnology

The degree of reduction of ethanol is-

TLS Online TPP Program

#Question id: 21012

#Part-B Specialized Branches in Biotechnology

The degree of reduction of methane is-

TLS Online TPP Program

#Question id: 21013

#Part-B Specialized Branches in Biotechnology

The degree of reduction of glucose is-