+91-8076753736[email protected]
logo
logo
-->

Biotechnology : Principles And Processes

Question
CBSEENBI12002567
Wired Faculty App

Restriction endonucleases are enzymes which

  • make cuts at specific positions within the DNA molecule

  • recognize a specific nucleotide sequence for binding of DNA ligase

  • restrict the action of the enzyme DNA polymerase

  • remove nucleotides from the ends of the DNA

Solution

A.

make cuts at specific positions within the DNA molecule

Restriction endonucleases recognise a specific DNA base sequence (recognition sequence of the recognition site, restriction sequence or restriction site) and cleave both the strands of DNA at or near the site. The enzyme cuts are DNA, generating restriction fragments wit overhanging ends or blunt ends.

Some More Questions From Biotechnology : Principles and Processes Chapter

Name a technique by which DNA fragments can be separated.

What are the different tools in Recombinant DNA technology?

Give the full form of PCR. Who developed it ?

What is the source of DNA polymerase i.e., Taq polymerase ?

Define “melting of target DNA”.

What would be the molar concentration of human DNA in a human cell ? Consult your teacher.

Do eukaryotic cells have restriction endonucleases ? Justify your answer.

From what you have learnt, can you tell whether enzymes are bigger or DNA is bigger in molecular size. How did you know ?

Expand EFB.

What are two core techniques that enabled birth of biotechnology ?

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation