Q. You need to culture a very low density of protoplasts, specifically looking for rare mutants or hybrids. According to the data, which technique is most suitable for supporting growth at low densities? 

TLS Online TPP Program

#Question id: 38781

#Plant Biotechnology

Q. Assertion (A): Shoot apical meristems are preferred explants for eliminating plant viruses.

Reason (R): Viruses are unable to replicate efficiently in rapidly dividing meristematic cells.

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#Question id: 38782

#Plant Biotechnology

Q.Statement I: Meristem culture is widely used to recover virus-free plants.

Statement II: Viral titres are usually very low or absent in shoot apical meristems.

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TLS Online TPP Program

#Question id: 38783

#Plant Biotechnology

Q. Assertion (A): Meristem culture has been extensively used in crops like potato and sugarcane.

Reason (R): These crops are clonally propagated and highly susceptible to viral infections.

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#Question id: 38784

#Plant Biotechnology

Q. Statement I: Meristem culture was first applied to produce virus-free Dahlia plants.

 Statement II: This application was reported by Morel and Martin in 1952.

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#Question id: 38785

#Plant Biotechnology

Q.Statement I: Very small apical meristems are used for virus elimination in meristem culture.

 Statement II: The initial size of apical meristems used is approximately 100 µm. 

TLS Online TPP Program

#Question id: 38786

#Plant Biotechnology

Q. Statement I: Meristem culture is used to eliminate only viral pathogens from plants.

 Statement II: Plants regenerated through meristem culture are free from viruses, viroids, mycoplasma, fungi, and bacteria.