Telomerase

a. extends DNA strands during DNA synthesis.

b. has reverse transcriptase activity.

c. is a protein-RNA complex.

d. replicates repetitious DNA located at the centromere.

TLS Online TPP Program

#Question id: 38773

#Plant Biotechnology

Q.Statement I: The pH of the enzyme solution for protoplast isolation is maintained between 4.7 and 8.0.

Statement II: Enzymes involved in cell wall degradation show activity only at neutral pH.

TLS Online TPP Program

#Question id: 38774

#Plant Biotechnology

Q. Statement I: Protoplast isolation is usually carried out at a temperature range of 25–30°C.

Statement II: This temperature range supports optimal enzyme activity and maintains protoplast viability.

TLS Online TPP Program

#Question id: 38775

#Plant Biotechnology

Q. Statement I: High osmotic concentration of the enzyme mixture is maintained using sorbitol or mannitol.

Statement II: Elevated osmoticum prevents protoplast bursting by balancing internal turgor pressure.

TLS Online TPP Program

#Question id: 38776

#Plant Biotechnology

Q. Statement I: Calcium chloride is added to the osmoticum during protoplast isolation.

Statement II: Calcium ions improve plasma membrane stability of protoplasts.

TLS Online TPP Program

#Question id: 38777

#Plant Biotechnology

Q. Statement I: B5 and MS media are commonly used for culturing isolated protoplasts.

Statement II: These media provide essential macro- and micronutrients required for protoplast survival and division.

TLS Online TPP Program

#Question id: 38778

#Plant Biotechnology

Q. Statement I: Mannitol and sorbitol are preferred osmotic stabilizers during protoplast isolation.

Statement II: These compounds are metabolized rapidly by protoplasts to generate energy.