Plates having streptomycin allow to propagate only those bacteria, which are resistant to the antibiotic. Plates without streptomycin act as control.
Using imprints from a plate with complete medium and carrying bacterial colonies, you can select streptomycin resistant mutants and prove that such mutations do not originate as adaptation. These imprints need to be used:
Held on 30 Apr 2005 · Verified 9 Jul 2026.
on plates with and without streptomycin
on plates with minimal medium
only on plates with streptomycin
only on plates without streptomycin.
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Given below are two statements : Statement I : Transfer RNAs and ribosomal RNA do not interact with mRNA. Statement II : RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence. In the light of the above statements, choose the most appropriate answer from the options given below :
Silencing of specific mRNA is possible via RNAi because of
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Work through every NEET UG Biotechnology and Its Applications PYQ, year by year.