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Discuss what is meant bg the following paradigm of all life: DNA >RNA>PROTEIN

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Medical Sciences

Discuss what is meant bg the following paradigm of all life: DNA>RNA>PROTEIN

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We know a single life start from protein In a leaving orgamismprotein is present in everywhere We also know that thecell which the stractural unit of an organism itsstracture is made by protein known phospholipidNow we need to know what is DNA RNA and PROTEINDNA DNA is a molecule composed of twopolynucleotide chains that coil around each other to form a doublehelix carrying genetic instructions for the development itis the hereditary materialin humans and almost all other organisms Nearly every cell in apersons body has the same DNA Most DNA is located in the cellnucleus Theinformation in DNA is stored as a code made up of four chemicalbases adenine A guanine G cytosine C and thymineTRNA Ribonucleic acidRNA is apolymeric molecule essential in various biological roles incoding decoding regulation and expression of genes RNA and DNAare nucleic acids and along with lipids proteins andcarbohydrates constitute the four major macromolecules essentialfor all known forms of lifeIt is principallyinvolved in the synthesis of proteins carrying the messengerinstructions from DNA which itself contains the geneticinstructions required for the development and maintenance of lifeIn some viruses RNA rather than DNA carries geneticinformationPROTEIN Proteins are large biomolecules ormacromolecules consisting of one or more long chains of amino acidresidues Proteins perform a vast array of functions withinorganisms including catalysing metabolic reactions DNAreplication responding to stimuli providing structure to cellsand organisms and transporting molecules from one location toanotherThecentral dogma of molecular biology is anexplanation of the flow of genetic information within a biologicalsystem It is often stated as DNA makes RNA and RNA makesproteinThe Central Dogma Thisstates that once information has passed into protein it cannotget out again In more detail the transfer of information fromnucleic acid to nucleic acid or from nucleic acid to protein maybe possible but transfer from protein to protein or from proteinto nucleic acid is impossible Information means here the precisedetermination of sequence either of bases in the nucleic acid orof amino acid residues in the proteinFrancis Crick1958This is the simplisticDNA RNA protein pathwayThe dogma is a frameworkfor understanding the transfer of sequence informationbetween informationcarrying biopolymers in the most common orgeneral case in living organismsWe will discuss how a protein is synthesized from a singleDNAdeoxyribonucleicacid moleculeReplication in molecular biology DNAreplication is the biological process of producing twoidentical replicas of DNA from one original DNA molecule DNAreplication occurs in all living organisms acting as the mostessential part for biological inheritance The cell possesses thedistinctive property of division which makes replication of DNAessentialTranscription is thefirst of several steps of DNA based gene expression in which aparticular segment of DNA is copied into RNA especially    See Answer
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