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TLS Online TPP Program

#Question id: 40426

    Assertion (A): Shuttle vectors are naturally occurring plasmids found in Agrobacterium tumefaciens.

      Reason (R): They contain two origins of replication, enabling them to replicate in two different host organisms

      Choose the correct option: 

      #Applied Microbiology
      1. Both (A) and (R) are true and (R) is the correct explanation of (A).
      2.  Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
      3. A) is true but (R) is false
      4. (A) is false but (R) is true
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      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?
      TLS Online TPP Program

      #Question id: 38742

      #Plant Biotechnology

      Q: Which of the following combinations of statements is entirely CORRECT?
      I. Cell wall components include cellulose, hemicellulose, and pectin.
      II. The optimal temperature range for isolation is 25-30°C.
      III. Barley aleurone cells are treated with Zymolyase to form sphaeroplasts.
      IV. The one-step method involves using an enzyme mixture together simultaneously.