NCERT Solutions for Class 12 Biology Chapter 6 - Molecular Basis of Inheritance

 

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NCERT Solutions for Class 12 Biology Chapter 6 - Molecular Basis of Inheritance: Do you know, what is that which acts as a genetic material of living organisms. The answer is DNA, DNA acts as the genetic material in most of the organisms. Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are the two types of nucleic acids found in living systems. RNA though it also acts as genetic material in some viruses, mostly functions as a messenger. RNA has additional roles as well. It functions as an adapter, structural, and in some cases as a catalytic molecule. Chapter 6 - Molecular Basis of Inheritance of NCERT Class 12 Biology will tell you about our molecular basis of inheritance.

NCERT of Class 12 Biology Chapter 6 - Molecular Basis of Inheritance will also tell you that DNA stores genetic information, RNA mostly helps in transfer and expression of information. Though DNA and RNA both function as genetic material, DNA being chemically and structurally more stable is a better genetic material. However, RNA is the first to evolve and DNA was derived from RNA.

Here are the important topics of Class 12 NCERT Biology Chapter 6 - Molecular Basis of Inheritance:

6.1 The DNA

   6.1.1 Structure of Polynucleotide Chain

   6.1.2 Packaging of DNA Helix

6.2 The Search for Genetic Material

   6.2.1 The Genetic Material is DNA

   6.2.2 Properties of Genetic Material (DNA versus RNA)

6.3 RNA World

6.4 Replication

   6.4.1 The Experimental Proof

   6.4.2 The Machinery and the Enzymes

6.5 Transcription

   6.5.1 Transcription Unit

   6.5.2 Transcription Unit and the Gene

   6.5.3 Types of RNA and the process of Transcription

6.6 Genetic Code

   6.6.1 Mutations and Genetic Code

   6.6.2 tRNA– the Adapter Molecule

6.7 Translation

6.8 Regulation of Gene Expression

   6.8.1 The Lac operon

6.9 Human Genome Project

   6.9.1 Salient Features of Human Genome

   6.9.2 Applications and Future Challenges

6.10 DNA Fingerprinting

In NCERT Class 12 Biology Chapter 6 - Molecular Basis of Inheritance, you will also study about Human genome project was a mega project that aimed to sequence every base in the human genome. This project has yielded much new information. Many new areas and avenues have opened up as a consequence of the project. DNA Fingerprinting is a technique to find out variations in individuals of a population at the DNA level. It works on the principle of polymorphism in DNA sequences.

After going through Chapter 6 - Molecular Basis of Inheritance of Class 12 you will be able to answer the questions given below:

Q1. Which property of DNA double helix led Watson and Crick to hypothesise semi-conservative mode of DNA replication? Explain.
Q2. Depending upon the chemical nature of the template (DNA or RNA) and the nature of nucleic acids synthesised from it (DNA or RNA), list the types of nucleic acid polymerases.
Q3. How did Hershey and Chase differentiate between DNA and protein in their experiment while proving that DNA is the genetic material?

And if still confused or not able to answer by yourself then Solutions for NCERT Class 12 Biology Chapter 6 - Molecular Basis of Inheritance is there for you.

Also, try to attempt all the given questions in NCERT, as NCERT is the base of your learning. In case, if you find any doubt then refer to NCERT Solutions for Class 12 Biology Chapter 6 - Molecular Basis of Inheritance. There you will get all the answers to this chapter and it will help you to score good marks in the exam. As well as this will also help you with other competitive exams like NEET, AIIMS, and JIPMER.

NCERT Solutions for Class 12 Biology Chapter 6 - Molecular Basis of Inheritance- Solved Exercise Questions

NCERT Solutions class 12 – Biology

Chapter 1

Reproduction in organisms

Chapter 2

Sexual Reproduction in Flowering Plants

Chapter 3

Human Reproduction

Chapter 4

Reproductive Health

Chapter 5

Principles of Inheritance and Variation

Chapter 7

Evolution

Chapter 8

Human health and disease

Chapter 9

Strategies for enhancement in food production

Chapter 10 

Microbes in Human Welfare

Chapter 11

Biotechnology: Principles and Processes

Chapter 12

Biotechnology and its applications

Chapter 13

Organisms and Populations

Chapter 14

Ecosystem

Chapter 15

Biodiversity and Conservation

Chapter 16

Environmental Issues

NCERT Solutions for Class 12- Subject wise

NCERT solutions for Class 12 Maths

NCERT solutions for Class 12 Chemistry

NCERT solutions for  Class 12 Biology

NCERT solutions for Class 12 Physics

 

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