Do eukaryotic cells have restriction end | Class 12 Biology Chapter Biotechnology Principles and Process, Biotechnology Principles and Process NCERT Solutions

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Academic session 2026-27, Chapter 9 in the current curriculum.

Welcome to the NCERT Solutions for Class 12 Biology - Chapter Biotechnology Principles and Process. This page offers a step-by-step solution to the specific question from Exercise 1, Question 5: Do eukaryotic cells have restriction endonucleases? Justify your answer.. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.

Question 5: Do eukaryotic cells have restriction endonucleases? Justify your answer.
Answer:

No, eukaryotic cells do not have restriction endonucleases. This is because the DNA of eukaryotes is highly methylated by a modification enzyme, called methylase. Methylation protects the DNA from the activity of restriction enzymes .These enzymes are present in prokaryotic cells where they help prevent the invasion of DNA by virus.

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NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

  • Read the question carefully and focus on the core concept being asked.
  • Reference examples and data from the chapter when answering questions about Biotechnology Principles and Process.
  • Review previous year question papers to get an idea of how such questions may be framed in exams.
  • Practice answering questions within the time limit to improve your speed and accuracy.
  • Discuss your answers with your teachers or peers to get feedback and improve your understanding.

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Comments

  • Adriana fan
  • Nov 07, 2019

are u tonight....i wanna cum inside u adriana

  • rohit ahir
  • Jan 07, 2019

so what about apn1 isolated from yeast and topoisomarase in our DNA .so i think ans is yes ,euk... have endo.....

  • Dipanwita sarkar
  • Oct 19, 2018

I am not happy with the answer.... like I am nt sure abt it

  • Adriana
  • May 12, 2016

This is not true. Some eukaryotic organisms, for example yeasts, have restriction enzymes to protect their DNA from environmental damege. Even humans have some.

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Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 5: Do eukaryotic cells have restriction endonucleases? Justify your answer.....

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