nucleic acids Flashcards
Stores genetic information
nucleic acids
nucleic acids are polymers of
nucleotides
1- Pentose 2- phosphate
3- nitrogenous base:
nucleotides
Purines
purines: adenine & guanine
pyrimidines:
cytosine, thymine, and uracil
(Uracil is only found in
RNA
six membered rings
Pyrimidines:
2 cycles
Purines:
Nucleosides:
nitrogenous base + pentose
Pentose is linked to the base by ……… while phosphate link to the base by …….. bonds
glycosidic bonds, phosphodiester
Pentose in RNA is
ribose
dna sugar
in DNA is deoxyribose
Dna structure
Double stranded antiparallel helix
The …….. bonds are the backbone of DNA (on the outside region because they are ……)
sugar-phosphate, hydrophilic
Carbon number …… of ribose sugar is called one prime. Carbon number two is called two prime, carbon
number three is called three prime and so on.
1,