TLS Online TPP Program

#Question id: 39872


Q. Which of the following xylem elements is living?

#Botany
  1.  Tracheids
  2.  Vessels
  3.  Xylem fibres
  4.  Xylem parenchyma
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TLS Online TPP Program

#Question id: 38734

#Plant Biotechnology

Q.  Regarding density gradient centrifugation used in protoplast purification:
1. Separation is based on buoyant density.
2. Viable protoplasts form a distinct band.
3. Broken cells sediment faster than intact protoplasts.
4. The method separates cells based on size alone.
Which statements are correct?

TLS Online TPP Program

#Question id: 38735

#Plant Biotechnology

Q. With reference to feeder layer technique in protoplast culture:
1. Feeder cells provide diffusible growth factors.
2. It compensates for the absence of cell-to-cell signaling.
3. Feeder cells directly fuse with protoplasts.
4. It increases plating efficiency of isolated protoplasts.
Which statements are correct?

TLS Online TPP Program

#Question id: 38736

#Plant Biotechnology

Q. Regarding callus formation from protoplasts:
1. Callus formation requires prior regeneration of the cell wall.
2. Callus cells are genetically identical to the donor plant.
3. Callus represents a dedifferentiated state.
4. High auxin concentration promotes callus induction.
Which statements are correct?

TLS Online TPP Program

#Question id: 38739

#Plant Biotechnology

Q. Which of the following pairs is INCORRECTLY matched?

TLS Online TPP Program

#Question id: 38740

#Plant Biotechnology

Q. Identify the correctly matched set used commonly for plant protoplast isolation:

TLS Online TPP Program

#Question id: 38741

#Plant Biotechnology

Q. Which enzyme combination is MOST appropriate for complete degradation of primary plant cell wall during protoplast isolation?