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NCERT Solutions for Class 12 Biology Chapter 12 Biotechnology and its Applications
Edited By Irshad Anwar | Updated on Sep 19, 2023 02:34 PM IST | #CBSE Class 12th
NCERT Solutions For Class 12 Biology Biotechnology and its Applications - Free PDF Download
Get Access to NCERT Solutions for Class 12 Biology Chapter 12 Biotechnology and its Applications here: In the solutions to NCERT Class 12 Biology Chapter 12 Biotechnology and its Applications, you will get all the questions and answers related to the different uses and applications of biotechnology in the real world. You will learn that recombinant DNA technology (RDT) has made it possible for us to engineer on a molecular basis with the help of microbes, plants, and animals so that they can have novel capabilities. In NCERT Solutions for Class 12 Biology Chapter 12, you will get questions on topics that include therapeutics, diagnostics, genetically modified crops for agriculture, processed food, bioremediation, and other waste management. Read the entire article to learn more about Chapter 12 Biology Class 12 NCERT Notes. In order to study for the board exams, students can use these NCERT Solutions for Class 12. Additionally, these answers are available for free download in PDF format. It provides answers in accordance with the most recent CBSE Syllabus 2023-24 and the NCERT Textbook. Scroll down to go through the questions and answers given in NCERT Solutions for Class 12 Biology Chapter 12.
This Story also Contains
- NCERT Solutions For Class 12 Biology Biotechnology and its Applications - Free PDF Download
- NCERT Solutions For Class 12 Biology Biotechnology and its Applications
- NCERT Solutions for Class 12 Biology Chapter 12: Biotechnology and Its Applications (Solved Exercise)
- NCERT Solutions for Class 12 Biology Chapter 12 – Biotechnology and Its Applications
NCERT Solutions for 12 Biology Chapter, you will also get answers to questions that have been asked about the interesting topic of gene therapy. Chapter 12 Biology Class 12 NCERT Solutions will tell you that gene therapy is the insertion or injection of genes into an individual’s cells and tissues to treat a kind of disease, like hereditary diseases. It can be performed by replacing a defective mutant allele with a functionally targeted gene or allele, which involves gene amplification. To know more about this process, you have to go through the questions and answers given in Biotechnology and its Applications NCERT Solutions. In case you have any doubts or queries about solving these questions, then the Solutions for NCERT Biology Class 12 will help you to solve them. You can find comprehensive answers to every chapter of the NCERT Solutions for Class 12 Biology, which are updated to the CBSE Syllabus 2023-24.
In Biotechnology and its Applications Class 12, you will also get interesting questions about the ethical issues related to the transgenic animals. Class 12 Biology Chapter 12 is curated according to the latest CBSE Syllabus for 2023–24. These Class 12 Biology NCERT Solutions will help students score well in the exams. Biotechnology and its Applications Class 12 Solutions provide explanations in detail with related and representative examples. Class 12 Biology chapters are very important for competitive exams such as NEET.
NCERT Solutions For Class 12 Biology Biotechnology and its Applications
According to the latest CBSE Syllabus 2023-24, this chapter has been renumbered as Chapter 10.
Also Read,
NCERT Exemplar for Class 12 Biology Chapter 12 Biotechnology and its Applications
NCERT Solutions for Class 12 Biology Chapter 12: Biotechnology and Its Applications (Solved Exercise)
Biotechnology and its Applications Class 12 Questions and Answers
Q1. Crystals of Bt toxin produced by some bacteria do not kill the bacteria themselves because-
(a) bacteria are resistant to the toxin
(b) toxin is immature
(c) toxin is inactive
(d) bacteria encloses toxin in a special sac.
Answer:
(c). Toxin is inactive
The Bt toxin remains inactive in the bacteria. It gets activated after entering the insect gut due to the alkaline pH of the gut.
Class 12 Biology Chapter 12 Question Answer
Q2. What are transgenic bacteria? Illustrate using any one example.
Answer:
Transgenic bacteria are the bacteria whose genes have been manipulated by transferring foreign genes into its genome through recombinant DNA technology. For example, transgenic E.coli was developed by introducing in it, two DNA sequences of A and B chains of human insulin in order to produce insulin to treat diabetic patients.
Biotechnology and its Applications Class 12 Questions and Answers:
Q3. Compare and contrast the advantages and disadvantages of production of genetically modified crops.
Answer:
GM crops are genetically modified crops that can be made by transferring desirable characteristics in them. The main advantage of GM crops is that they are highly productive and they yield an increased amount of produce. The other advantages of the production of genetically modified crops in order to increase the yield are as follows:
1. GM crops can be developed for increasing the nutritional quality of crop products. For example golden rice with enhanced vitamin, A content is a GM crop.
2. Many GM crops are developed to have insect pest resistance, thus, decreasing our dependence on chemical-based insecticides/pesticides.
3. GM crops are made to be highly tolerant of environmental conditions.
4. Gm crops are highly tolerant to abiotic conditions
5. GM Crops minimises post-harvesting losses.
GM crops possess some disadvantages also. The presence of a transgene in commercial crops endangers wild species. The gene for Bt toxin expressed in pollen endangers pollinators such as honeybees. These crops supply allergens and transfer antibiotic resistance markers. They are damaging to the genetic environment.
NCERT Solutions for Class 12 Biology Chapter 12 Biotechnology and its Applications:
Answer:
Cry proteins are toxin protein encoded by cry genes. These are produced by a bacteria named Bacillus thuringiensis which itself remain safe from cry toxins b y having methylated DNA. Cry proteins act as insecticides as they are toxic to insects. This property of Cry proteins has been exploited in producing genetically modified crops such as Bt cotton, Bt brinjal etc. These crops are resistant to insects of order Lepidoptera.
Biotechnology and its Applications Class 12 NCERT Solutions:
Q5. What is gene therapy? Illustrate using the example of adenosine deaminase (ADA) deficiency.
Answer:
Gene therapy refers to a collection of methods and technologies allowing correction or replacement of a defective or dysfunctional gene. While correcting, a normal gene is transferred into the individual's embryo to replace and perform the function of the original defective gene. One well-established example of gene therapy is ADA deficiency. This is caused by the deletion of a gene encoding for enzyme adenosine deaminase. The gene therapy for ADA deficiency was carried out in a 4-year-old patient by the following method:
1. The lymphocytes of a patient were grown in a culture in vitro.
2. A functional ADA cDNA was introduced in these lymphocytes using a retroviral vector.
3. The transformed lymphocytes were introduced back into the blood of the patient.
4. The patient is regularly infused with transformed lymphocytes
5. For a permanent cure of ADA deficiency, a gene isolated from bone marrow cell is introduced in the patient in the early stage.
NCERT Solutions for Class 12 Biology Biotechnology and its Applications:
Answer:
Diagrammatic representation of steps in DNA cloning
NCERT Solutions for Class 12 Biology Chapter 12:
Answer:
Recombinant DNA technology is a technique by which the genome of an organism can be manipulated Oils are made of glycerols and fatty acids. So using recombinant DNA technology we can silence the genes coding for glycerol and fatty acids and remove oil (hydrocarbon) from seeds.
Q8. Find out from internet what is golden rice.
Answer:
Golden rice is a variety of rice crop, genetically engineered to synthesise beta carotene which is a precursor of vitamin A. The normal rice produces beta carotene but in leaves, to increase the production of vitamin A, beta carotene should be synthesised in the endosperm. Golden rice was developed by transferring two beta-carotene biosynthesis genes into the rice genome. These genes include psy (phytoene synthase) from a plant named Narcissus pseudonarcissus (daffodil) and crtI (phytoene desaturase) from the soil bacterium Erwinia uredovora. These genes were under endosperm-specific promoter so that they will show expression in the endosperm.
Biotechnology and its Applications Class 12 Solutions:
Q9. Does our blood have proteases and nucleases?
Answer:
Proteases and nucleases are two enzymes that catalyse the hydrolysis of proteins and nucleic acids respectively. These enzymes are not found in blood, instead, blood contains protease inhibitors protecting the proteins being broken down. Similarly, nucleases are also absent in blood.
Biotechnology and its Applications Class 12 NCERT Solutions:
Answer:
Orally active protein pharmaceuticals contain biologically active proteins, peptides etc. These are taken into the body by oral route in various formulations. The production of these protein pharmaceuticals involves encapsulation of proteins or peptides in liposomes using penetration enhancers. These proteins or peptides are used for the treatment of diseases and they can also be used as vaccines.
The major problem encountered in the administration of these pharmaceuticals is that they are ingested orally, and digested by the proteases present in the stomach before showing results. This is why such pharmaceuticals are directly ingested into the target site.
NCERT Solutions for Class 12 Biology Chapter 12 – Biotechnology and Its Applications
Biotechnology and its Applications Class 12 NCERT Solutions: According to the current CBSE Syllabus for 2023-24, Chapter 12 Biotechnology and Its Applications of Class 12 Biology has been prepared. Overall, the Biotechnology unit receives 10 marks, which is consistent with prior trends. As a result, students can earn up to 10 marks by reviewing and practising questions with NCERT Solutions for Class 12 from these two chapters. After going through the Biotechnology and its Applications NCERT Solutions, you must be able to understand all the questions and answers mentioned in the above.
Three critical research areas of biotechnology which you should know for the solutions of NCERT for Class 12 Biology Chapter 12 biotechnology and its applications are given below:
(i) Providing the best catalyst in the form of the improved organism usually a microbe or pure enzyme
(ii) Creating optimal conditions through engineering for a catalyst to act, and
(iii) Downstream processing technologies to purify the protein/organic compound.
Important Topics of Biotechnology and its Applications Class 12 Solutions are given below:
The important topics in CBSE biotechnology book class 12 solutions are given below:
Section Name | Topic Name |
12 | Biotechnology and its Applications |
| 12.1 | Biotechnological Applications in Agriculture |
| 12.2 | Biotechnological Applications in Medicine |
| 12.3 | Transgenic Animals |
| 12.4 | Ethical Issues |
| 12.5 | Summary |
NEET Highest Scoring Chapters & Topics
Most Scoring concepts For NEET (Based On Previous Year Analysis)
Download EBookImportant Subtopics in Class 12 Biology Chapter 12:
- 12.2.1 - Genetically Engineered Insulin
- 12.2.2 - Gene Therapy
- 12.2.3 - Molecular Diagnosis
JEE Main Important Mathematics Formulas
As per latest 2024 syllabus. Maths formulas, equations, & theorems of class 11 & 12th chapters
Highlights of NCERT Solutions Class 12 Biology Chapter 12 Biotechnology and Its Applications
Class 12 Biology Chapter 12 NCERT Solutions highlights are given below:
- Chapter 12 Biology Class 12 NCERT Solutions are written in the best possible way using simple language that makes solutions easier to read and understand
- In the Class 12 Biotechnology and its Applications NCERT Solutions, points are used to frame answers to help understand quickly.
- Biotechnology NCERT Solutions content is derived from the textbook by the subject expert.
- Solutions for Biology Chapter 12 Class 12 are as per the latest CBSE Syllabus and guidelines.
- Class 12 Biology Chapter 12 NCERT Solutions PDF links are readily available and easily accessible for free.
- Important topics are listed in the Class 12 Biology Ch 12 question answer.
- Biotechnology Applications NCERT is a great resource for information.
- Class 12 Biology Chapter 12 question answer will also help you to prepare for your competitive exams like NEET.
- Biotechnology and its Applications NCERT Solutions will also help you in your 12th board exam.
- Biotechnology class 12 NCERT will also boost your knowledge and interest in biology.
- NCERT is the base of your learning and here it's easy to access Solutions PDF of Ch 12 biology class 12
NCERT Exemplar Class 12 Solutions
| NCERT Exemplar Class 12 Chemistry Solutions |
| NCERT Exemplar Class 12 Mathematics Solutions |
| NCERT Exemplar Class 12 Biology Solutions |
| NCERT Exemplar Class 12 Physics Solutions |
Also Check NCERT Books and NCERT Syllabus here:
- NCERT Books Class 12 Biology
- NCERT Syllabus Class 12 Biology
- NCERT Books Class 12
- NCERT Syllabus Class 12
NCERT Solutions for Class 12 Biology- Chapter wise
Chapter 1 | |
Chapter 2 | |
Chapter 3 | |
Chapter 4 | |
Chapter 5 | |
Chapter 6 | |
Chapter 7 | |
Chapter 8 | |
Chapter 9 | |
Chapter 10 | |
Chapter 11 | |
Chapter 12 | Biotechnology and its Applications |
Chapter 13 | |
Chapter 14 | |
Chapter 15 | |
Chapter 16 |
NCERT Solutions for Class 12- Subject wise
NCERT solutions for Class 12 Biology |
We hope you will ace your board examination with the help of NCERT Solutions for Class 12 Biology Chapter 12 Biotechnology and its Applications.
Frequently Asked Question (FAQs)
1. How to download biotechnology and its applications class 12 ncert pdf?
To download biotechnology and its applications class 12 ncert pdf for 12 biology chapter , students can use the online webpage to pdf converter tools. To Score Well in the examination, follow the NCERT syllabus and exercise given in the NCERT Book. To practice more problems, students can refer to the NCERT exemplar.
2. what are the Benefits of NCERT solutions for class 12 biology chapter 12 biotechnology and its applications?
The Benefits of NCERT solutions for class 12 biology chapter 12 biotechnology and its applications are:
- You will get all the 12 Biology chapter important questions to this chapter and it will help you to score good marks in the exam.
- Biotechnology and its applications class 12 ncert pdf will also help you to prepare for your competitive exams like NEET.
- Biotechnology and its applications ncert pdf will also help you in your 12th board exam.
- Biotechnology class 12 ncert will also boost your knowledge and interest in biology.
- NCERT is the base of your learning and here it's easy to access.
3. How will studying Chapter 12 of NCERT Solutions for Class 12 Biology benefit me?
The applications of biotechnology include:
- Biotechnology – Principles and processes
- Biotechnology and its applications
- Biotechnological Applications in Agriculture
- Biotechnological Applications in Medicine
- Transgenic Animals
- Ethical Issues
4. What is the meaning of Biotechnology, according to NCERT Solutions for Class 12 Biology Chapter 12?
The field of biotechnology, according to NCERT Solutions for Class 12 Biology Chapter 12, uses living things to advance technology in a variety of areas for the long-term welfare of humanity. It has uses in both the medical and agricultural fields. Since more than 6000 years ago, the biological processes of living things have been utilised to create necessary goods like bread, cheese, alcohol, etc.
5. How can students prepare for their board exams by using the NCERT Solutions for Class 12 Biology Chapter 12?
Students can focus more clearly and save time by using the NCERT Solutions for Class 12 Biology Chapter 12. The experts carefully prepare the solutions in accordance with the most recent CBSE Syllabus. To get a clear understanding of the concepts, which are crucial for the CBSE exams, students can consult the solutions while completing the questions from the textbook.
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5 min ⋆ Jul 05, 2024 12:07 PM ISTQuestions related to CBSE Class 12th
Have a question related to CBSE Class 12th ?
hello mahima,
If you have uploaded screenshot of your 12th board result taken from CBSE official website,there won,t be a problem with that.If the screenshot that you have uploaded is clear and legible. It should display your name, roll number, marks obtained, and any other relevant details in a readable forma.ALSO, the screenshot clearly show it is from the official CBSE results portal.
hope this helps.
Ashvadha 12 July,2024
Hello Akash,
If you are looking for important questions of class 12th then I would like to suggest you to go with previous year questions of that particular board. You can go with last 5-10 years of PYQs so and after going through all the questions you will have a clear idea about the type and level of questions that are being asked and it will help you to boost your class 12th board preparation.
You can get the Previous Year Questions (PYQs) on the official website of the respective board.
I hope this answer helps you. If you have more queries then feel free to share your questions with us we will be happy to assist you.
Thank you and wishing you all the best for your bright future.
kumardurgesh1802 10 July,2024
Hello student,
If you are planning to appear again for class 12th board exam with PCMB as a private candidate here is the right information you need:
- No school admission needed! Register directly with CBSE. (But if you want to attend the school then you can take admission in any private school of your choice but it will be waste of money)
- You have to appear for the 2025 12th board exams.
- Registration for class 12th board exam starts around September 2024 (check CBSE website for exact dates).
- Aim to register before late October to avoid extra fees.
- Schools might not offer classes for private students, so focus on self-study or coaching.
Remember
, these are tentative dates based on last year. Keep an eye on the CBSE website ( https://www.cbse.gov.in/ ) for the accurate and official announcement.
I hope this answer helps you. If you have more queries then feel free to share your questions with us, we will be happy to help you.
Good luck with your studies!
kumardurgesh1802 10 July,2024
Hello Aspirant , Hope your doing great . As per your query , your eligible for JEE mains in the year of 2025 , Every candidate can appear for the JEE Main exam 6 times over three consecutive years . The JEE Main exam is held two times every year, in January and April.
satyamercedes0626 23 July,2024
Hi there,
Hope you are doing fine
Yes you are certainly eligible for giving the jee exam in the year 2025. You must pass the maths exam with at least 75% criteria as required by jee and provide the marksheet and the passing certificate while registering for the exam.
Pursuing maths as an additional subject while taking biology as your main subject does not offer any hindrance in you appearing for the jee examination. It is indeed an privilege to pursue both maths and biology as the subjects and prepare for the same.
There will be no issue in filling the form while registering for the exam as it will only require your basic details and marksheet which you can provide by attaching the marksheet of maths also. Also, a detailed roadmap is also available on the official websites on how to fill the registration form. So you can fill the form easily.
Hope this resolves your query.
Abhishek 12 July,2024
Popular CBSE Class 12th Questions
A block of mass 0.50 kg is moving with a speed of 2.00 ms-1 on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is
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An athlete in the olympic games covers a distance of 100 m in 10 s. His kinetic energy can be estimated to be in the range
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A particle is projected at 600 to the horizontal with a kinetic energy . The kinetic energy at the highest point
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In the reaction,
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How many moles of magnesium phosphate, will contain 0.25 mole of oxygen atoms?
| Option 1)
0.02 |
Option 2)
3.125 × 10-2 |
| Option 3)
1.25 × 10-2 |
Option 4)
2.5 × 10-2 |
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