Cov txheej txheem:
Video: Cov noob caj noob ces nyob qhov twg?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Kev txhais yuav siv qhov chaw hauv lub nucleus. Nws siv DNA ua tus qauv los ua ib qho RNA (mRNA) molecule. Thaum lub sij hawm transcription, ib tug strand ntawm mRNA yog ua uas yog complementary rau ib tug strand ntawm DNA. Daim duab 1 qhia tias qhov no tshwm sim li cas.
daim ntawv sau cia nyob qhov twg?
Nyob hauv eukaryotes, kev txhais lus thiab kev txhais lus muaj nyob rau hauv cov cellular compartments: transcription yuav siv sij hawm chaw nyob rau hauv lub membrane-bounded nucleus, whereas translation tshwm sim sab nraum lub nucleus nyob rau hauv lub cytoplasm. Hauv prokaryotes, ob txheej txheem yog sib txuas ua ke (Daim duab 28.15).
DNA yog dab tsi?
Hauv kev sau ntawv, thaj tsam ntawm DNA qhib. Ib txoj hlua, qauv strand, ua tus qauv rau kev sib txuas ntawm RNA cov ntawv sau ntxiv. Lwm strand, coding strand, yog zoo tib yam rau RNA transcript nyob rau hauv sequence, tsuas yog hais tias nws muaj uracil (U) bases nyob rau hauv qhov chaw ntawm thymine (T) bases.
gene nyob qhov twg?
Genes tau pom ntawm cov qauv me me zoo li lub npe hu ua chromosomes (hais: KRO-moh-somes). Thiab chromosomes muaj nyob hauv cov hlwb. Koj lub cev yog tsim los ntawm billions ntawm cov hlwb. Cells yog cov chav me me uas tsim txhua yam muaj sia.
Dab tsi yog noob sau?
Kev txhais lus yog tus txheej txheem ntawm kev ua RNA luam ntawm cov noob kab ke. Daim ntawv theej no, hu ua messenger RNA (mRNA) molecule, tawm ntawm lub cell nucleus thiab nkag mus rau cytoplasm, qhov uas nws coj cov synthesis ntawm cov protein, uas nws encodes.
Pom zoo:
Cov noob caj noob ces cuam tshuam rau miv?
Ib tug miv tsis yog miv tiag tiag. Nws cuam tshuam rau tsev neeg miv tab sis tsis zoo li nws yog rau civets thiab mongooses; Txawm li cas los xij, nws zoo li tus miv thiab qhia ntau yam ntawm lawv cov yam ntxwv thiab tus cwj pwm. Lawv tau faib thoob plaws hauv ntau lub tebchaws Africa thiab thaj chaw ntawm Southern Europe thiab Middle East .
Leej twg los ua ib tug noob caj noob ces?
Yuav ua li cas thiaj ua tau tus kws tshaj lij Genealogist Koom nrog Koom Haum Cov Kws Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij. … Npaj thiab Thov Daim Ntawv Pov Thawj thiab / lossis Kev lees paub. … Mus koom Kev Kawm Seminars thiab Rhiav.
Cov noob caj noob ces puas yog tsiaj?
Genets tau loj hlob nyob rau hauv qhov chaw zoo li cov tsiaj txawv txawv vim lawv cov qauv zoo nkauj. … Cov noob caj noob ces yog hom tsiaj feem ntau khaws cia ua tsiaj. Lawv yog cov ceev, agile, thiab nyob ib leeg uas xav tau kev saib xyuas tshwj xeeb, tab sis rau tus tswv txoj cai, lawv tuaj yeem ua rau tsiaj lom zem .
Puas cov noob caj noob ces tswj tau?
Nyob rau hauv evolutionary txoj kev loj hlob biology, homeotic genes yog cov noob uas tswj kev loj hlob ntawm anatomical lug nyob rau hauv ntau yam kab mobxws li echinoderms, kab, tsiaj, thiab nroj tsuag . Homeotic genes tswj kev loj hlob li cas?
Puas yog spondylolisthesis caj ces lossis caj ces?
Ntau tus kws tshaj lij qhia tias ib yam ntawm cov kab mob rau spondylolisthesis yuav muaj nyob. Vim yog kev tsim cov caj ces, ib tus neeg yuav muaj pob txha vertebral nyias txij thaum yug los. Muaj cov pob txha vertebral nyias ua rau tus neeg muaj kev cuam tshuam rau tus mob no .
