VIDEO LECTURES FOR MOLECULAR BASIS OF INHERITANCE (CLASS 12)
NEET BIOLOGY VIDEOS
12 Videos On Molecular Basis of Inheritance
Video Lecture 01
Molecular Basis of Inheritance | Video #1 | Neet BiologyClass 12th Biology Video Lecture
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Video Lecture 02
Molecular Basis of Inheritance | Video #2 | Neet BiologyClass 12th Biology Video Lecture
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Video Lecture 03
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Video Lecture 04
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Video Lecture 05
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Video Lecture 07
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Video Lecture 08
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Video Lecture 09
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Video Lecture 10
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Video Lecture 11
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Video Lecture 12
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Video Lectures For Molecular Basis of Inheritance for NEET Exam
Overview
NEET Class 12 Biology NCERT Chapter 6 Molecular Basis of Inheritance
In this video, we will cover:
1. Historical Background
2. DNA (Deoxyribonucleic acid)
3. Composition of a Nucleotide
4. Nitrogenous Bases
5. Formation of a Nucleoside
6. Formation of a Nucleotide
7. Polymerisation of nucleosides
8. Formation of double stranded polynucleotide chain
9. Salient Features of a DNA double helix
10. Molecular Basis of Inheritance NEET
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Chapter 6 Molecular Basis of Inheritance Class 12 NEET Biology deals with:
We will look at the phenomenon of Inheritance at a molecular level.
DNA is the genetic material for most of the organisms, except for few exceptions like viruses where RNA is the genetic material.
DNA helps in synthesis of RNA, which in turn helps in protein synthesis, and these proteins control traits of individuals.
In this lesson, we will learn how DNA was discovered to be the genetic material, and how this entire process of protein synthesis takes place.
Structure of Nucleic Acids
Nucleic acids are the biomolecules which play a very important role in the process of Inheritance.
Two types of nucleic acids exist: DNA (Deoxyribo Nucleic Acid) and RNA (Ribo Nucleic Acid).
- DNA has a double-stranded structure. It is a polynucleotide whose monomer units are deoxyribonucleotide. Length of DNA is determined by number of nucleotides in it.
- RNA, on the other hand, has a single-stranded structure. It is also a polymer whose monomer units are ribonucleotide.
A nucleotide has 3 components:
- Pentose sugar - Monosaccharide with 5 Carbon atoms
- Ribose sugar in RNA
- Deoxyribose sugar in DNA
Nitrogenous base
- Nitrogen containing compound with properties of a base
- 2 types: Purines, Pyrimidines
- Purine
- Heterocyclic aromatic organic compound
- 9-membered ring
- Examples: Adenine, Guanine
- Pyrimidine
- Heterocyclic aromatic organic compound
- 6-membered ring
- Examples: Cytosine, Uracil, Thymine
- Phosphate group
- Inorganic salt of phosphorus
- Forms backbone of polynucleotide chain along with the sugar
Formation of a polynucleotide takes place using the following linkages:
- Nitrogenous base is linked to the pentose sugar through a N-glycosidic bond to form a nucleoside
- A phosphate group is linked to 5'-OH of a nucleoside through phosphoester bond to form a nucleotide
- Multiple nucleotides are joined together through 3'-5' phosphodiester bond to form a polynucleotide
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All About: Molecular Basis of Inheritance NEET Biology NEET chapter 5
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Molecular Basis of Inheritance FAQs
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Definitely! Our 20 NEET Video Lectures are refreshed weekly for NEET Exam, focusing on Bohr’s model, quantum numbers, and more—no syllabus cuts noted, just pure numerical and conceptual prep.
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Class 12 Biology Molecular Basis of Inheritance NCERT chapter 5
Revision of Class 12 Biology Molecular Basis of Inheritance is a crucial aspect of effective learning. Revision plays a vital role in the learning process and is especially important before exams. Here are some key points you can consider emphasizing in your content:
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