If the experimental population of E. coli lacks an F factor or F plasmid, and if bacteriophage are excluded from the bacterial cultures, then which of these is a means by which beneficial mutations might be transmitted horizontally to other E. coli cells?

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#Question id: 4153

#Part-A Aptitude & General Biotechnology

Ubiquitin-mediated protein degradation is a complex process, and many of the signals remain unknown.  One known signal involves recognition of amino acids in a processed protein that are either stabilizing (Ala, Gly, Met, Ser, etc.) or destabilizing (Arg, Asp, Leu, Lys, Phe, etc.), and are located at:

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#Question id: 5242

#Part-A Aptitude & General Biotechnology

Auxotrohic bacteria plating on different medium, it is observed that colonies grow on minimal plus threonine only, no colony on minimal plus leucine and no colonies grow on minimal medium cystein only. What are the actual genotypes of auxotroph?

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#Question id: 11865

#Part-A Aptitude & General Biotechnology

The LCM of two numbers is 4 times their HCF. The sum of LCM and HCF is 125. If one of the numbers is 100, then the other number is

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#Question id: 18696

#Part-B Specialized Branches in Biotechnology

Isoschizomers recognize

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#Question id: 14526

#Part-B Specialized Branches in Biotechnology

The limiting value of  is