NEET Zoology Genetic Engineering MCQ Question
In the process of introducing recombinant DNA into bacteria, cells are first incubated on ice and then exposed to a brief heat shock at 42°C. What is the importance of the heat shock step in terms of bacterial cell transformation efficiency?
It increases the permeability of the bacterial cell wall.
It enhances the replication rate of the introduced DNA.
It helps in the inactivation of antibiotic resistance genes.
It stabilizes the recombinant DNA structure.
Correct Answer
Detailed Explanation
The heat shock step increases the permeability of the bacterial cell wall, allowing the recombinant DNA to enter the bacterial cell, as mentioned in the NCERT context.
Found an issue with this question?
Related Questions
More from Genetic Engineering
In the diagram shown above, which component of the genetic engineering process involves cutting DNA at specific sites?
Assertion (A): Thermostable DNA polymerase is essential for the amplification of DNA during the PCR process. | Reason (R): Thermostable DNA polymerase...
Assertion (A): Restriction enzymes are essential for the creation of recombinant DNA. | Reason (R): Restriction enzymes act as molecular scissors that...
More from
Assertion (A): Bioprocess engineering requires a sterile environment for the growth of desired microbes. | Reason (R): A stirred-tank reactor is desig...
In the diagram shown above, which component of the bioreactor is responsible for maintaining optimal pH levels during the bioprocess?
Which combination of statements correctly describes the processes involved in recombinant DNA technology?