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TLS Online TPP Program

#Question id: 40206

Assertion (A): Taq polymerase is preferred over normal DNA polymerases (like E. coli DNA Pol I) for PCR.

Reason (R): Taq polymerase has a proofreading activity (3'-------5'exonuclease) that ensures zero errors during amplification.

#Applied Microbiology
  1. Both A and R are true, and R is the correct explanation of A
  2. Both A and R are true, but R is NOT the correct explanation of A. 
  3. A is true, but R is false
  4. A is false, but R is true.
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TLS Online TPP Program

#Question id: 39263

#Plant Biotechnology

Q. Assertion: Somatic hybridization between non-flowering and male sterile dihaploid clones of potato can result in male fertile hybrids. 
Reason: Symmetric hybridization allows for the creation of superior hybrids and the generation of novel genetic material by bypassing traditional sexual reproduction barriers.
TLS Online TPP Program

#Question id: 39264

#Plant Biotechnology

Q. Assertion: Tobacco hybrids produced from N. rustica and N. tabacum may exhibit resistance to blue mould. 
Reason: Blue mould resistance was a primary trait present in both parent lines and was intentionally selected for during the initial fusion process.
TLS Online TPP Program

#Question id: 39265

#Plant Biotechnology

Q. Assertion: Symmetric hybrids are utilized to widen the genetic base of allopolyploid species.
 Reason: Producing synthetic lines of Brassica napus by fusing B. oleracea and B. campestris introduces desirable traits that might be missing in the current cultivated pool.
TLS Online TPP Program

#Question id: 39266

#Plant Biotechnology

Q. Assertion: Somatic hybrids of potato fused with S. brevidens are used in breeding programs to combat Potato Leaf Roll Virus (PLRV). 
Reason:S. brevidens is a wild relative of the potato that carries natural resistance to certain viral and bacterial diseases like Erwinia soft rot.
TLS Online TPP Program

#Question id: 39267

#Plant Biotechnology

Q. Superior somatic hybrids showing 20–25% higher alkaloid content and potential for industrial scopolamine production were obtained from fusion between:
TLS Online TPP Program

#Question id: 39268

#Plant Biotechnology

Q. Which somatic hybrid combination resulted in markedly higher tuber yield, with one clone producing three times the yield of commercial potato variety Bintje?