TLS Online TPP Program
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TLS Online TPP Program
#Question id: 39262
#Plant Biotechnology
Q. Assertion: The fusion of B. napus (AACC) and B. nigra (BB) results in a hybrid with the genomic constitution AABBCC.
Reason: This specific interspecific fusion was primarily conducted to transfer resistance against Phoma lingam (black-leg disease) to rapeseed.
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: