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6.1.1 Structure of Polynucleotide Chain. Let us recapitulate the chemical structure of a polynucleotide chain (DNA or RNA). A nucleotide has three components – a nitrogenous base, a pentose sugar (ribose in case of RNA, and deoxyribose for DNA), and a phosphate group.
The DNA structure defines the basic genetic makeup of our body. In fact, it defines the genetic makeup of nearly all life on earth. Table of Contents. What is DNA? Discovery; Diagram; DNA Structure; Chargaff’s Rule; DNA Replication; Function of DNA; Why DNA is called a Polynucleotide Molecule?
7.1 DNA As The GeNeTic MATeriAl. offspring through genes. You are also aware that these genes are present on chromosomes which are made up of n. cleic acids and proteins. However, understanding the nature of gene which is responsible for expression of trait was one of the biggest challenges before.
Nucleic acids are composed of DNA-deoxyribonucleic acid and RNA-ribonucleic acid that form the polymers of nucleotides. In the nucleus, nucleotide monomers are linked together comprising of distinct components namely a Phosphate Group, Nitrogenous Bases or Ribose and Deoxyribose.
MODULE 9. AIM. The aim of this module is to provide students with an introduction to DNA structure and its various conformations. CONTENTS AND OBJECTIVES. Ø Introduction Ø Structure of DNA Ø Properties of DNA Ø Structural conformations . ü A-DNA ü B-DNA ü Z-DNA. AN OVERVIEW OF DEOXYRIBONUCLEIC ACID (DNA) INTRODUCTION.
Learn about the history, structure and replication of DNA and RNA, transcription and translation. This unit is aligned to the Class 12 NCERT curriculum.
In this chapter we are going to discuss the structure of DNA, its replication, the process of making RNA from DNA (transcription), the genetic code that determines the sequences of amino acids in proteins, the process of protein synthesis (translation) and elementary basis of their regulation.
