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NCERT Solutions for Class 12 Biology Chapter 6 Molecular Basis of Inheritance are provided in this article. It includes all the important definitions, concepts, and methodologies that will be really beneficial for the students appearing for CBSE Class 12 Exam 2022-23. The important topics that are included in this chapter are:
NCERT Solutions for Class 12 Biology Chapter 6
Class 12 Biology Chapter 6 Molecular Basis of Inheritance: Important Topics
The two types of nucleic acids present in living systems are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA behaves similarly to genetic material in most organisms. Although RNA serves as genetic material in some viruses, it is mostly used as a messenger. RNA also serves other functions. It serves as an adaptor, structural molecule, and in certain situations a catalytic molecule. The structure of DNA, its replication, the method of creating RNA from DNA (transcription), the genetic code that specifies the sequences of amino acids in proteins, the process of protein synthesis (translation), and the fundamental foundation of their control are all covered in this chapter.
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Structure of DNA
DNA is composed of two linked strands that wind around each other to resemble a twisted ladder, namely a shape known as a double helix. Each strand possesses a backbone made of alternating sugar (deoxyribose) and phosphate groups. Attached to each sugar is one of four bases: adenine (A), cytosine (C), guanine (G) or thymine (T).
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Structure of RNA
Ribonucleic acid (RNA) is a molecule that is made up of nucleotides, which are ribose sugars attached to nitrogenous bases and phosphate groups. It is present in the majority of living organisms and viruses. The nitrogenous bases include adenine, guanine, uracil, and cytosine.
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Genome and Genomics
A genome is an organism's complete set of DNA that includes all of its genes as well as its hierarchical, three-dimensional structural configuration. Genomics is referred to an interdisciplinary field of biology focusing on the structure, function, evolution, mapping, and editing of genomes.
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