TLS Online TPP Program
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TLS Online TPP Program
#Question id: 39282
#Plant Biotechnology
Q. Statement I: In the cybrid approach, iodoacetate is used to inactivate the nuclei of the recipient strain (Parent A).
Statement II: Irradiation is used to inactivate the nuclei of the donor strain (Parent B) to ensure only its cytoplasm is transferred.
TLS Online TPP Program
#Question id: 39283
#Plant Biotechnology
Q. Statement I: In the fusion product described, the mitochondria are always derived from the donor strain (Parent B).
Statement II: The chloroplasts in the resulting regenerants must always come from the recipient strain (Parent A)
TLS Online TPP Program
#Question id: 39284
#Plant Biotechnology
Q. Statement I: Fusing tomato protoplasts with irradiated Solanum acaule protoplasts produced plants that were morphologically identical to Solanum acaule.
Statement II: The resulting tomato regenerants exhibited Cytoplasmic Male Sterility (CMS), which was inherited maternally.
TLS Online TPP Program
#Question id: 39285
#Plant Biotechnology
Q. Statement I: Protoplast fusion can be used to develop male sterile lines even between sexually incompatible species.
Statement II: CMS lines developed through this method cannot be used with traditional CMS restorers.
TLS Online TPP Program
#Question id: 39286
#Plant Biotechnology
Q. Assertion: Cybrids can be produced by the irradiation of protoplasts from one of the fusion parents.
Reason: Irradiation effectively inactivates the nucleus of the donor protoplast, allowing only its cytoplasm to contribute to the fusion product.
TLS Online TPP Program
#Question id: 39287
#Plant Biotechnology
Q. Assertion: Cybridization is a valuable tool for transferring traits like cytoplasmic male sterility (CMS) and herbicide resistance in crops like rice and tobacco.
Reason: Cybrids contain the nuclear genome of only one species, which ensures the plant retains its primary species characteristics while gaining specific cytoplasmic traits.