Previous Year Biology Question Paper for CBSE Class 12 - 2018 - Free PDF Download
Biology is a subject that consists of elaborated concepts that need a thorough understanding of all the topics demonstrated with diagrams. By solving question papers of biology Class 12 2018, students will get familiarised with the question pattern, different types of questions asked in the exam and its difficulty level.
Students can decide how much they need to write for a particular question considering their marks allocation. Thus, students can effectively manage their time to solve an examination paper.
FAQs on Previous Year Question Paper for CBSE Class 12 Biology - 2018
1. What are the important chapters that students need to study from Biology Class 12?
Students will find important questions from cell biology, reproduction, and genetics. They can get further information on repeated and important questions from previous years’ question paper of Biology Class 12 2018.
2. Write any four reasons for the increasing rate of population in our Country?
The four reasons for the rapid growth of population in our country are, due to improved health services, death rates have been reduced. Also, in rural areas, early marriages are still prevalent. So this is one of the major causes of the growth of population. Moreover, most of our country’s citizens are not educated and do not know the problems that can arise from having a large family. Lastly, life spans have become longer.
3. Explain Test-Tube babies and how they are different from normal babies.
Test tube babies are produced by combining the egg and the sperm in a culture tube (In-vitro Fertilisation) and taking care of the uterus are called test-tube babies. They are just the same as normal babies; only the procedure takes place in In-vitro conditions. Test tube babies don’t grow entirely outside of the body, they just get conceived in a culture tube. When an embryo is formed with the help of a sperm and egg, it is transferred into a woman’s functional uterus where the baby grows.
4. What is Genetic Engineering and what are its benefits?
When two or more different pieces of DNA from different organisms are combined it is known as Genetic Engineering. It is also known as Recombinant DNA technology. Genetic Engineering has many uses in modern science. It is prominently used in medicine and agriculture. The Insulin used today by Diabetic patients is a gift of Recombinant DNA technology. The technology is also used in the production of various vaccines and gene therapies. In agriculture, genetically modified plants are made with the aid of this technology. Diagnostic tests and procedures are sometimes based on genetic engineering. You can go to Vedantu, to learn more about the steps involved in Recombinant DNA technology.
5. How does studying the previous year Biology question paper for CBSE Class 12 - 2018, help students score well in exams?
Studying the Previous Year Biology Question Paper for CBSE Class 12 - 2018, helps students score well in exams in many ways as this method of referring to the sample papers is the most efficient for studying for exams. Going through the Sample papers can help students to understand the paper pattern and get an idea about the type of questions that could be asked in the exam. You can get these sample papers on Vedantu. These sample papers are prepared by the experts in the particular fields and are curated with reference to the previous years’ question papers. You can download this and other material from Vedantu for free.
You can avail all the well-researched and good quality chapters, sample papers, syllabus on various topics from the website of Vedantu and its mobile application available on the play store.