Using only random VDJ recombination, from 40 V, 23 D, and 6 J gene segments, what are the number of possible variable regions of an antigen receptor molecule?

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#Question id: 18961

#Part-A Aptitude & General Biotechnology

When a cDNA library is generated by first removing those mRNA or cDNA sequences that are common to two sources, e.g., two different Cell types, such a library is called 

TLS Online TPP Program

#Question id: 18962

#Part-A Aptitude & General Biotechnology

1. Presence of oncogenes (iaaM, iaaH and ipt) in T-DNA,

2. Their large size makes the handling procedures during cloning tedious and cumbersome

3. A general lack of unique cloning sites within the T-DNA, which are needed for the insertion of DNA segments to be cloned.

These three problems have been resolved by deleting 

TLS Online TPP Program

#Question id: 18964

#Part-A Aptitude & General Biotechnology

Size of agrobacterium can be reduced by binary vector formation; these binary vectors can be formed by phenomenon of

TLS Online TPP Program

#Question id: 18978

#Part-A Aptitude & General Biotechnology

For expression vector 

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#Question id: 18979

#Part-A Aptitude & General Biotechnology

For expression vector Strong and Regulatable Promoters are used which have

TLS Online TPP Program

#Question id: 18980

#Part-A Aptitude & General Biotechnology

The most widely used strong regulatable promoters are those