TLS Online TPP Program
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TLS Online TPP Program
#Question id: 18963
#Unit 13. Methods in Biology
The use of wild type pTi as a vector presents the following three problems.
1. Presence of oncogenes (iaaM, iaaH and ipt) in T-DNA, which causes a disorganised growth and a loss of regeneration potentiaLof the cells having T-DNA in their genomes.
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
In the above mention’s problems, 1 and 3 can removed by disarming and creating MCS, to overcome from 2nd problem need to develop
TLS Online TPP Program
#Question id: 18964
#Unit 13. Methods in Biology
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
#Unit 13. Methods in Biology
For expression vector
TLS Online TPP Program
#Question id: 18979
#Unit 13. Methods in Biology
For expression vector Strong and Regulatable Promoters are used which have
TLS Online TPP Program
#Question id: 18980
#Unit 13. Methods in Biology
The most widely used strong regulatable promoters are those
TLS Online TPP Program
#Question id: 18981
#Unit 13. Methods in Biology
The pL promoter is controlled by the cl repressor protein of bacteriophage A. In practice, a temperature-sensitive mutant of the cl repressor, cl857, is generally used to regulate pL-directed transcription. Cells carrying the temperature-sensitive cl repressor are first grown at 30°C, and 42°C