Assertion (A): Snakes are considered highly evolved reptiles despite lacking limbs.

Reason (R): Snakes possess a specialized biting mechanism and venom apparatus for predation.

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.

TLS Online TPP Program

#Question id: 38744

#Plant Biotechnology

Match the following enzymes commonly used in plant tissue maceration with their sources:

List I	List II
A. Zymolyase	1. Rhizopus arrhizus
B. Pectolyase	2. Arthrobacter luteus
C. Macerase	3. Aspergillus japonicus
D. Macerozyme R-10	4. Helix pomatia

Select the correct option: