Home
NCERT Soltions
Class 12
Biology
Biotechnology Principles and Process
Can you list 10 recombinant proteins which are used in medical practic...

Can you list 10 recombinant proteins whi | Class 12 Biology Chapter Biotechnology Principles and Process, Biotechnology Principles and Process NCERT Solutions

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 1: . 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 1: Can you list 10 recombinant proteins which are used in medical practice? Find out where they are used as therapeutics (use the internet).

Answer:

Recombinant proteins are obtained from the recombinant DNA technology. This technology involves the transfer of specific genes from an organism into another organism using vectors and restriction enzymes as molecular tools.

Ten recombinant proteins used in medical practice are −

Recombinant protein		Therapeutic use
1.	Insulin	Treatment for type I diabetes mellitus
2.	Interferon-α	Used for chronic hepatitis C
3.	Interferon -β	Used for herpes and viral enteritis
4.	Coagulation factor VII	Treatment of haemophilia A
5.	Coagulation factor IX	Treatment of haemophilia B
6.	DNAase I	Treatment of cystic fibrosis
7.	Anti-thrombin III	Prevention of blood clot
8.	Interferon B.	For treatment of multiple sclerosis
9.	Human recombinant growth hormone	For promoting growth in an individual
10.	Tissue plasminogen activator	Treatment of acute myocardial infection

Other Questions of Chapter Biotechnology Principles and Process

Q: Explain briefly
(a) PCR
(b) Restriction enzymes and DNA
(c) Chitinase

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

While doing a PCR, ‘denaturation’ step is missed. What will be its effect on the process?

Q: Can you think and answer how a reporter enzyme can be used to monitor transformation of host cells by foreign DNA in addition to a selectable marker?

Q: Besides better aeration and mixing properties, what other advantages do stirred tank bioreactors have over shake flasks?

Q: Collect 5 examples of palindromic DNA sequences by consulting your teacher. Better try to create a palindromic sequence by following base-pair rules.

Q: Discuss with your teacher and find out how to distinguish between
(a) Plasmid DNA and chromosomal DNA
(b) RNA and DNA
(c) Exonuclease and Endonuclease

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

Q: Do eukaryotic cells have restriction endonucleases? Justify your answer.

Q: Can you recall meiosis and indicate at what stage a recombinant DNA is made?

Popular questions of class 12 Biology

Q: What is spermatogenesis? Briefly describe the process of spermatogenesis.

Q: Why is reproduction essential for organisms? Answer

Q: Write a short note on
(a) Adaptations of desert plants and animals
(b) Adaptations of plants to water scarcity
(c) Behavioural adaptations in animals
(d) Importance of light to plants
(e) Effect of temperature or water scarcity and the adaptations of animals.

Q: With a neat diagram explain the 7-celled, 8-nucleate nature of the female gametophyte.

Q: What is DNA fingerprinting? Mention its application.

Q: What is oogenesis? Give a brief account of oogenesis.

Q: Describe the structure of a seminiferous tubule.

Q: What is triple fusion? Where and how does it take place? Name the nuclei involved in triple fusion.

Q: With a neat, labelled diagram, describe the parts of a typical angiosperm ovule.

Q: Explain the Law of Dominance using a monohybrid cross.

Recently Viewed Questions of Class 12 Biology

Taking examples under each category, discuss upstream and downstream processing.

Name the first transgenic cow. Which gene was introduced in this cow?

Q: Diagrammatically represent the experimental steps in cloning and expressing an human gene (say the gene for growth hormone) into a bacterium like E. coli ?

Q: Explain what is meant by biofortification.

What is the main idea behind “Joint Forest Management Concept” introduced by the Government of India?

Q: List two essential roles of ribosome during translation.

Q: If a population growing exponentially double in size in 3 years, what is the intrinsic rate of increase (r) of the population?

Q: Try to trace the various components of human evolution (hint: brain size and function, skeletal structure, dietary preference, etc.)

Which type of food would have lactic acid bacteria. Discuss their useful application.

Give the full form of ELISA. Which disease can be detected using it? Discuss the principle underlying the test.

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 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.

Latest Blog Posts

Stay updated with our latest educational content and study tips

Simple and Compound Interest Formulas with Questions

Interest is one of the most significant ideas in maths and financial calculations. It is very common in banking, loan applications, investments, saving account and competitive exams. Simple Interest and Compound Interest make it easier to find out how much more is earned and/or paid on a principal during the period of time. These Interest … Read more

Spoken English Course Topics for Beginners in 2026

In 2026, students, professionals, and job seekers must have a high level of spoken English. Spoken English is a beginner level course to enhance learners’ communication skills in English, their pronunciation, vocabulary, grammar structure and confidence in speaking English fluently. Today, the emphasis of spoken English courses is placed on actual conversations, everyday speech practice … Read more

Difference Between AI and Machine Learning

Artificial Intelligence (AI) and Machine Learning (ML) are two of the most sought-after technologies in today’s digital era. Although these terms are often used together, they are not the same. Machine Learning is, in fact, a component of Artificial Intelligence that enables systems to learn and enhance on their own, without direct programming. AI is … Read more

Time, Speed and Distance Formulas

Time, Speed, and Distance are some of the most important concepts in mathematics and aptitude. These are the concepts which are used to calculate the speed of an object, time taken for an object to move and the distance traveled during the motion. Questions from this topic are frequently seen in School Tests, Competitive Tests, … Read more

View All Blog Posts

Comments

Vishal Singh
Jan 29, 2022

Dnase nhi hoga vrna Pura thik h nice Thnak u very much ððð

Navdeep kaur
Dec 05, 2019

ðð»God bless you sirðð»very much thanks

Anurag
Oct 08, 2019

Thank u

Mohammad kamil malik
Aug 18, 2019

Thanks

Saif Ali Pasha
Aug 17, 2019

Thanks sir

Saif Ali Pasha
Aug 17, 2019

Thanks sir

Surbhi sneha
Jul 16, 2019

Thank u soo much

Sachin
Mar 09, 2019

Thanks

arpita singh
Feb 13, 2019

perfect ans

Faiqa
Feb 13, 2019

Thanks Sir