A nucleotide muaj cov piam thaj molecule (xws li ribose hauv RNA lossis deoxyribose hauv DNA) txuas rau pawg phosphate thiab cov hauv paus muaj nitrogenCov hauv paus siv hauv DNA yog adenine (A), cytosine (C), guanine (G), thiab thymine (T). Hauv RNA, lub hauv paus uracil (U) siv qhov chaw ntawm thymine.
Nucleotides ua los ntawm dab tsi?
A molecule muaj xws li
a nitrogen-muaj puag (adenine, guanine, thymine, lossis cytosine hauv DNA; adenine, guanine, uracil, lossis cytosine hauv RNA), phosphate pawg, thiab qab zib (deoxyribose hauv DNA; ribose hauv RNA).
Nucleotides tsim li cas?
Nucleotides yog monomeric units ntawm nucleic acids. Lub nucleotide yog tsim los ntawm cov carbohydrate residue txuas nrog lub hauv paus heterocyclic los ntawm β-D-glycosidic daim ntawv cog lus thiab mus rau pawg phosphate ntawm C-5' (cov tshuaj muaj cov phosphate pawg ntawm C- 3' kuj paub).
Vim li cas peb feem ntawm A nucleotide?
Peb qhov chaw ntawm nucleotide yog txuas ntawm covalent bonds Cov nitrogenous bases bonds rau thawj lossis thawj carbon atom ntawm qab zib. Tus naj npawb 5 carbon ntawm cov piam thaj sib txuas rau pawg phosphate. Ib qho nucleotide dawb yuav muaj ib, ob, lossis peb pawg phosphate uas txuas ua cov saw hlau rau cov piam thaj 5-carbon.
Dab tsi ua rau Ib qho lus nug nucleotide?
Nucleotides txhua tus muaj peb ntu: phosphate, qab zib molecule, thiab ib qho ntawm plaub lub hauv pausCov hauv paus muaj xws li: A, (adenine), g (guanine), t (thymine), c (cytosine). Cov phosphate thiab qab zib molecule bonds tsim cov pob txha los yog tes rail ntawm DNA (staircase), tab sis cov noob caj noob ces yog nyob rau hauv cov kauj ruam (ntawm cov ntaiv): lub hauv paus.