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TLS Online TPP Program
#Question id: 38821
#Plant Biotechnology
Q. Assertion (A):All plants regenerated through meristem culture, with or without chemo- or thermotherapy, are completely virus-free.
Reason (R):Plants regenerated through these methods must be tested for the presence of specific viruses by a process known as virus indexing.
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TLS Online TPP Program
#Question id: 38822
#Plant Biotechnology
Q. Assertion (A): Chemicals like Virazole and Actinomycin D are added to plant culture media to produce virus-free plants.
Reason (R): These antiviral chemicals inhibit the multiplication of viruses within the shoot-tips
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TLS Online TPP Program
#Question id: 38823
#Plant Biotechnology
Q. Assertion (A): Virazole is considered a versatile antiviral agent in biotechnology.
Reason (R): It has demonstrated effectiveness against Potato Virus X in plants as well as various DNA and RNA viruses in animals.
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TLS Online TPP Program
#Question id: 38824
#Plant Biotechnology
3. Assertion (A): The elimination of Odontoglossum Ringspot Virus (ORSV) from Cymbidium is only possible through the use of Virazole.
Reason (R): Treating Cymbidium shoot-tips with specific antibodies before culture can improve the frequency of virus elimination.
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TLS Online TPP Program
#Question id: 38825
#Plant Biotechnology
Q. Virus indexing is primarily carried out to:
TLS Online TPP Program
#Question id: 38826
#Plant Biotechnology
Q. Which virus-indexing method involves observing visible disease symptoms on test plants?