Protein X is found to bind to a certain geneʹs promoter only when substance A is not present.  The gene can be transcribed in the presence of both X and A. It is not transcribed in the presence of X alone. Protein X is a/an __. Substance A is a/an __.

#Question id: 67

#Unit 1. Structure and Function of Biomolecules

When a region of DNA must be repaired by removing and replacing some of the nucleotides, what ensures that the new nucleotides are in the correct sequence?

#Question id: 68

#Unit 1. Structure and Function of Biomolecules

Match the following functional groups given in column I with their respective representatives given in column II.

#Question id: 68

#Unit 1. Structure and Function of Biomolecules

Match the following functional groups given in column I with their respective representatives given in column II.

#Question id: 69

#Unit 1. Structure and Function of Biomolecules

Which of the following is the diastereomer of the following compound?

#Question id: 70

#Unit 1. Structure and Function of Biomolecules

The dimensions of living cells are limited, on the lower end by the minimum number of biomolecules necessary for function, and on the upper end by the rate of diffusion of solutes such as oxygen. Except for highly elongated cells, they usually have lengths and diameters in the range of

#Question id: 71

#Unit 1. Structure and Function of Biomolecules

Which of the following is not the priority rule for R, S Configuration?