Replication was allowed to take place in the presence of radioactive deoxynucleotides precursors in E.coli that was a mutant for DNA ligase. Newly synthesised radioactive DNA was purified and strands were separated by denaturation. These were centrifuged using density gradient centrifugation. Which of the following would be a correct result?

What will be the P/R ratio of a climax community and a pioneer community. What explanation could you offer for the changes seen in P/R ratio of a pioneer community and the climax community.

Explain divergent evolution in detail. What is the driving force behind it?

What is the difference between endemic and exotic species?

What are the functions of (i) methylated guanasine cap, (ii) poly-A “tail” in a mature on RNA?

Which bacterium has been used as a clot buster? What is its mode of action.

What does the term `memory' of the Immune system mean?

Lymph nodes are secondary lymphoid organs. Explain the role of lymph nodes in our immune response.

Among bryophytes, lichens and fern which one is a pioneer species in a xeric succession?

Name any two industrially important enzymes.

Study Tips for Answering NCERT Questions:

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 Microbes in Human Welfare.
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.

Comments

Comment(s) on this Question

Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 9: What is the chemical nature of biogas. Name an organism which is involved in biogas production?....

What is the chemical nature of biogas. N | Class 12 Biology Chapter Microbes in Human Welfare, Microbes in Human Welfare NCERT Solutions

< Previous Question

Next Question >

Popular questions of class 12 Biology

Recently Viewed Questions of Class 12 Biology

Study Tips for Answering NCERT Questions:

Comments

Comment(s) on this Question

Chapters for Class 12 Biology

Subjects for Class 12

Students Also Read

Important links

Quick Links

Resources

Support