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How Did The First DNA Form?
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How Did The First DNA Form?
Or DNA
Deoxyribonucleic acid
One view is that an RNA world existed on Earth before modern cells arose
According to this hypothesis, RNA stored both genetic information and catalyzed the chemical reactions in primitive cells. Only later in evolutionary time did DNA take over as the genetic material and proteins become the major catalyst and structural component of cells.
What is RNA?
DNA can be considered as a modified form of RNA
Ribonucleic acid
DNA From The Beginning
The First Organism
Bacteria have been the very first organisms to live on Earth. They made their appearance 3 billion years ago in the waters of the first oceans. The first living DNA was bacteria.
The Make up of DNA
Normal ribase sugar RNA is reduced into deoxiyribase in DNA, simple uracil based is methylated in to thymine.
Modern day cells DNA precurors.
Methylated mixed with methanol or methylated.
Thymine crystalline nucleotide present in DNA.
Uracil a compound found in living tissue as a constituent base of RNA, in DNA.
Precursor a person or thing that comes before another of the same kind. A substance from which another us formed, especially by metabolic reaction, biochemistry.
Sources
NCIB,https://ghr.nlm.nih.gov/primer/basics/dna,http://www.eniscuola.net/en/argomento/bacteria/bacteria-knowledge/the-first-organisms/,https://www.ncbi.nlm.nih.gov/books/NBK6360/figure/A43731/?report=objectonly,, https://www.ncbi.nlm.nih.gov/books/NBK6360/#A43732
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