List of top Biotechnology Questions

The IR stretching frequency of the carbonyl (C=O) group of a typical saturated ketone is 1715 cm\(^{-1}\). The IR stretching frequencies for the carbonyl groups present in three different acetophenone derivatives are given. Match the molecules in Group I with their corresponding frequencies in Group II. \[ \begin{array}{c|c} \text{Group I} & \text{Group II (C=O stretching frequency cm}^{-1}\text{)}
\hline P:\; p\text{-amino acetophenone} & 1:\; 1677
Q:\; p\text{-nitro acetophenone} & 2:\; 1700
R:\; p\text{-methoxy acetophenone} & 3:\; 1684
\end{array} \]

The first evidence of ‘gene transfer’ was demonstrated in 1928 by

Which of the following statements about eukaryotic asymmetric cell division is NOT correct?

The final stage of peptidoglycan (PG) biosynthesis is marked by PG cross-link formation and remodeling. Which of the following enzymes does NOT take part in these processes?

Which of the following represents the CORRECT order of events in the eukaryotic cell cycle?

Which of the following activities is NOT possessed by the human immunodeficiency virus-1 reverse transcriptase?

Bacterial cloning vectors and bacterial expression vectors are differentiated by the presence of

Sequence comparison of which of the following genes is used as a measure of evolutionary divergence across bacterial species?

An electric circuit with a resistor of constant resistance ‘R’ is maintained at a constant voltage ‘V’. Based on Ohm’s law, if the current ‘I’ through the circuit is doubled, the power ‘P’ dissipated across the resistor is

What is the ploidy level of a sporophyte in angiosperms?

The standard free energy change (\(\Delta G^0\)) of the binding reaction between different sweet molecules and a common sweet taste receptor are given. Which amongst these molecules is the sweetest at the same molar concentration?

Which of the following terrestrial biomes has the highest animal diversity?

The correct order of electronegativity of the given elements is

In humans, Down syndrome is caused by

Which one of the following hormones is produced by the adrenal gland?

After how many cycles of polymerase chain reaction (PCR), the amplified product of required length is generated for the first time from a chromosomal DNA template?

The overall stoichiometry for aerobic cell growth is:
3C₆H₁₂O₆ + 2.5NH₃ + O₂ → 1.5C₆H₈O₄Na + 3CO₂ + 5H₂O

The elemental composition formula of the biomass is: