E. coli cells were spread on an agar plate, producing 1000 colonies.  The colonies are replica plated on two agar plates containing the antibiotic kanamycin and one agar plate without antibiotics.  All of the colonies are able to grow on the agar plate without antibiotic but only 4 colonies are able to grow on each of the agar plates containing kanamycin.  You notice that the four colonies that grew on each of the kanamycin containing plates are in the exact same position.  This demonstrates

TLS Online TPP Program

#Question id: 12366

#Unit 1. Molecules and their Interaction Relevant to Biology

During nucleotide formation addition of purines and pyrimidines on sugar residue occurs at Nitrogen position no.

TLS Online TPP Program

#Question id: 12367

#Unit 1. Molecules and their Interaction Relevant to Biology

RNA contains ribose sugar. What could happen due the presence of extra hydroxyl group?

TLS Online TPP Program

#Question id: 12368

#Unit 1. Molecules and their Interaction Relevant to Biology

In Thymine base structure methyl group is present at position

TLS Online TPP Program

#Question id: 12369

#Unit 1. Molecules and their Interaction Relevant to Biology

Phosphoric acid attachment occur to ribose or deoxyribose at

A. C3 during phosphodiester bond formation

B. C5 during nucleotide formation

C. C2 during phosphodiester bond formation

D. C1 during nucleotide formation

Which of the combinations contains all incorrect statements?

TLS Online TPP Program

#Question id: 12370

#Unit 1. Molecules and their Interaction Relevant to Biology

Dideoxy ribose sugar contains

TLS Online TPP Program

#Question id: 27395

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is the example of polyketides