Tsis yog txhua tus noob tau sau txhua lub sijhawm. Hloov chaw, kev hloov pauv yog tswj hwm tus kheej rau txhua tus noob (lossis, hauv cov kab mob, rau cov pab pawg me me uas tau sau ua ke). Cells ua tib zoo tswj cov ntawv sau, sau cov noob uas nws cov khoom xav tau ntawm lub sijhawm tshwj xeeb.
Puas yog cov noob tau sau tseg hauv txhua lub cell?
No, qee cov noob yog cov ntaub so ntswg tshwj xeeb (lawv tsuas yog tau qhib rau hauv cov ntaub so ntswg), qee cov noob tau sau tsuas yog thaum lub sijhawm tshwj xeeb ntawm lub cev. Spatiotemporal gene qhia yog qhov ua kom cov noob nyob rau hauv cov ntaub so ntswg tshwj xeeb ntawm lub cev ntawm lub sijhawm tshwj xeeb thaum lub sijhawm kev loj hlob.
Puas yog tag nrho cov noob hauv ib lub cell tau sau thiab txhais?
Nyob rau hauv ib hom cell, tsis yog tag nrho cov noob encoded nyob rau hauv DNA yog transcribed mus rau hauv RNA los yog txhais ua cov protein vim hais tias cov hlwb hauv peb lub cev muaj cov haujlwm tshwj xeeb.
Cov noob twg tau sau?
Kev txhais lus yog tus txheej txheem ntawm kev ua RNA luam ntawm cov noob kab ke. Cov ntawv luam no, hu ua tus xa xov RNA (mRNA) molecule, tawm ntawm cell nucleus thiab nkag mus rau cytoplasm, qhov uas nws coj cov synthesis ntawm cov protein, uas nws encodes.
Puas yog noob replicated los yog transcribed?
Kev luam theej theej DNA rau hauv RNA, thaum rov ua dua ua lwm daim qauv ntawm DNA. Ob txoj kev koom nrog kev tsim cov molecule tshiab ntawm nucleic acids, xws li DNA lossis RNA; txawm li cas los xij, kev ua haujlwm ntawmtxhua tus txheej txheem sib txawv heev, nrog rau ib qho kev koom tes hauv cov noob caj noob ces thiab lwm qhov koom nrog hauv kev faib cell.
