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NCERT Books Free Download for Class 12 Biology Chapter 6 - Molecular Basis of Inheritance

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Last updated date: 22nd Mar 2024
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NCERT Books for Class 12 Biology Chapter 6 - Molecular Basis of Inheritance Free PDF Download

Free NCERT Books download for Class 12 Biology Chapter 6 - Molecular Basis of Inheritance on Vedantu. Students can also download the NCERT Textbooks Solutions in PDF for Class 6 to 12 all subjects. Register for Biology tuition to clear your doubts and score more in your exams.

Competitive Exams after 12th Science

Class 12 Biology Chapter 6 NCERT Books - Molecular Basis of Inheritance

Concepts Included In Chapter 6 Molecular Basis of Inheritance

1.   The DNA

  • 1.1 Structure of Polynucleotide Chain

  • 1.2 Packaging of DNA Helix

2.   The Search For Genetic Material

  • 2.1 The Genetic Material is DNA

  • 2.2 Properties of Genetic Material (DNA Versus RNA)

3.   RNA World

4.   Replication

  • 4.1 The Experimental Proof

  • 4.2 The Machinery and the Enzymes

5.   Transcription

  • 5.1 Transcription Unit

  • 5.2 Transcription Unit and the Gene

  • 5.3 Types of RNA and the process of Transcription

6.   Genetic Code

  • 6.1 Mutations and Genetic Code

  • 6.2 tRNA – the Adapter Molecule

7.   Translation

8.   Regulation of Gene Expression

  • 8.1 The Lac operon

9.   Human Genome Project

  • 9.1 Salient Features of Human Genome

  • 9.2 Applications and Future Challenges

10. DNA Fingerprinting

11. Summary

Some Salient Features of The NCERT Book of Class 12 Biology Chapter 6 Molecular Basis of Inheritance

The NCERT books have some of the best features making them easy and understandable to students across all classes. Here are some of the salient features mentioned below:

  • Students can easily access the NCERT book of Class 12 Biology Chapter 6 Molecular Basis of Inheritance free of cost.

  •  The study material is accessible in the form of a PDF file.

  • Students get in-depth knowledge of the chapter and can prepare for competitive exams from this book.

  • The content is created in an easy to understand dialect by skilled teachers after doing lots of research.

The NCERT book is considered as the best educational material during the Class 12th Board Examinations.

FAQs on NCERT Books Free Download for Class 12 Biology Chapter 6 - Molecular Basis of Inheritance

1. What type of study materials does Vedantu provide for studying Chapter 6 Molecular Basis of Inheritance of Class 12 Biology?

Vedantu is an online studying platform that provides various types of study materials that help students in studying Chapter 6 Molecular Basis of Inheritance of Class 12 Biology. These study materials are given below:

  •   NCERT Books

  •  NCERT Solutions

  •   CBSE Important Questions

  • Revision Notes

  • Popular Textbook Solutions

  • RD Sharma Solutions

These study materials are available on the official webpage of Vedantu in PDF format. Students can download these PDF files free of cost from Vedantu’s website and mobile app so that they can study offline. With the help of these educational materials, they can easily solve chapter related questions. 

2. Write down some differences between DNA and RNA?

Some differences are:

DNA-

  •  The location of DNA is the nucleus of the cell and the mitochondria.

  •  It contains 2-deoxyribose.

  • The function of DNA is the transmission of genetic material.

  •  It shows the phenomena of self-replication.

RNA-

  • The location of RNA is the nucleus, cytoplasm and ribosome.

  •  It contains ribose.

  • The function of RNA is the transmission of the genetic code which is required for the creation of proteins. It gets transmitted from the nucleus to the ribosome.

  • It gets synthesized from the DNA which means RNA does not get self-replicated.

3. What are the conditions for a molecule to act as genetic material?

Some conditions have to be fulfilled by a molecule to act as genetic material. This criterion is given below:

  • The molecule should self-replicate itself. It should show the process of replication.

  •  It should show stability both structurally and chemically.

  • The scope of mutation (small changes) should be provided by the molecule for       evolution.

  • The molecule should express itself in terms of Mendelian characters.

Both DNA and RNA can fulfill the above-mentioned conditions, therefore both are genetic materials. But among RNA and DNA, the best genetic material is DNA.

4. Write a short note on translation.

The process by which the amino acids change to form polypeptide through polymerization is known as translation. The sequence of bases in the mRNA decides the sequence and order of amino acids. These amino acids show the peptide bond and this bond requires some energy. In the presence of ATP, the amino acids get activated. They easily get linked to their cognate tRNA through the process called aminoacylation of tRNA or charging of tRNA. The catalyst enhances the formation of the peptide bond. 

5. What are the goals of HGP?

The full form of HGP is Human Genome Project. There are some significant goals of HGP which are as follows:

  • In human DNA, it identifies approximately 20,000 to 25,000 genes.

  • The sequences of 3 million chemical base pairs that make the human DNA are determined by the Human Genome Project.

  • Storage of the information in databases.

  • Improvement of tools for data analysis.

  • The social, ethical and legal issues are shown by the HGP.

  • The HGP transfers the technologies to different sectors like industries.