Dna Notes

desoxyribonucleic acid
Deoxyribose acid (DNA)
Ribonucleic Acid (RNA)

DNA is stored in the nucleus, RNA is lay out in the cytoplasm

Nucleic Acids atomic number 18 long chain molecules and their edifice blocks argon called nucleotides, more complicated than the acids

Nucleotides are compromised of a pentose plunder, a phosphate, and an essential free radical.

The Sugar is devil possibilities: ribose gives RNA and deoxyribose gives DNA
The Phosphate H3PO4 (P forms 5 bonds with separate atoms)
The Organic Base: the nitrogenous base

flipper Bases in DNA:
1.Adenine
2.Cytosine
3.Thymine
4.Guanine
5.Uracil

A, C, T and G are found in DNA.
A, C, U and G are found in RNA.

Adenine, Thymine and Uracil are receptive of forming two hydrogen bonds while Cytosine and Guanine hindquarters form three.
Adenine and Guanine are purines
Cytosine, Thymine, and Uracil are pyrimidines

phosphate + sugar + organic base ---> nucleotide + 2 water

Nucleotides can be connected together by a condensation reaction amidst the phosphate of whizz nucleotide and the sugar of another.
Covalent bonds are formed between the phosphate and sugar and a single strand is make with a backbone of phosphate and (deoxy)ribose and an organic base prone to every ribose.





The structure of DNA is a double ringlet
The back one is made of alternating phosphate - sugar groups. The rungs of the twisted ladder which DNA resembles are the organic base pairs.

Pairing for DNA makes A and T or C and G
Pairing for RNA makes A and U, C and G.

DNA Replication:
The DNA double helix has to unwind and the two strands need to seperate
Free nucleotides which are floating around in the nucleus for complementary pairs with the nucleotides of both of the DNA strands.
The enzyme DNA polymerase is trustworthy for when the nucleotides which have formed complementary base pairs with the nucleotides on the disused strand now join to each other
Because the organic base will only fit with one other one complementary base pairing,...If you want to get a full essay, order it on our website: Orderessay



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