Nyeem cov kab mob caj ces Piv txwv li, cov amino acid phenylalanine (Phe) yog teev los ntawm codons UUU thiab UUC, thiab cov amino acid leucine (Leu) yog teev los ntawm codons CUU, CUC, CUA, thiab CUG Methionine yog teev los ntawm codon AUG, uas tseem hu ua codon pib.
6 codons rau leucine yog dab tsi?
Piv txwv li, rau codons qhia leucine, serine, thiab arginine, thiab plaub codons qhia glycine, valine, proline, threonine, thiab alanine. Yim amino acids muaj ob codons, whereas muaj ib codon txhua rau methionine thiab tryptophan.
Puas muaj pes tsawg codons ua tau leucine?
Tseeb tiag, leucine, arginine, thiab serine tau teev tseg los ntawm rau codons txhua.
Vim li cas AUG ib txwm yog pib codon?
START codons
AUG yog qhov feem ntau pib codon thiab nws cov lej rau amino acid methionine (Met) hauv eukaryotes thiab formyl methionine (fMet) hauv prokaryotes. Thaum lub sij hawm kev sib txuas ntawm cov protein, tRNA lees paub qhov pib codon AUG nrog kev pab los ntawm qee yam kev pib thiab pib txhais ntawm mRNA.
Yuav tsum muaj pes tsawg codons rau txhua tus amino acids?
Txhua pawg ntawm peb nucleotides encodes ib amino acid. Txij li thaum muaj 64 kev sib txuas ntawm 4 nucleotides coj peb zaug ib zaug thiab tsuas yog 20 amino acids, cov cai yog degenerate (ntau tshaj ib codon per amino acid, feem ntau).