2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Introns yog noncoding seem ntawm RNA cov ntawv teev lus, lossis DNA encoding nws, uas tau sib cais ua ntej RNA molecule raug txhais ua cov protein. … Ib qho exon yog ib feem ntawm cov noob uas yuav dhau los ua ib feem ntawm qhov kawg paub tab RNA tsim los ntawm cov noob ntawd tom qab introns tau raug tshem tawm los ntawm RNA splicing.
Dab tsi yog cov lus nug introns?
Introns yog cov kev cuam tshuam uas raug tshem tawm thaum thawj RNA cov ntawv sau ua tiav los muab cov khoom lag luam RNA paub tab. … Ib qho kev txwv enzyme (los yog txwv tsis pub endonuclease) yog ib qho enzyme uas txiav DNA ntawm los yog ze rau cov kev paub tshwj xeeb nucleotide ib ntus hu ua qhov chaw txwv.
Puas yog ib feem ntawm cov noob?
Ib qho intron yog ib feem ntawm cov noob uas tsis code rau amino acids. … Cov ntu ntawm cov noob caj noob ces uas tau nthuav tawm hauv cov protein yog hu ua exons, vim hais tias lawv tau nthuav tawm, thaum lub sijhawm ntawm cov noob caj noob ces uas tsis tau qhia hauv cov protein yog hu ua introns, vim lawv tuaj nyob nruab nrab ntawm exons.
Puas yog introns thiab exons operons?
Introns thiab exons yog nucleotide sequences nyob rau hauv ib tug noob. Introns raug tshem tawm los ntawm RNA splicing li RNA matures, txhais tau hais tias lawv tsis tau qhia nyob rau hauv lub kawg messenger RNA (mRNA) cov khoom, thaum exons mus yuav covalently bonded rau ib leeg nyob rau hauv thiaj li yuav tsim mRNA paub tab.
Lub luag haujlwm ntawm introns hauv kev nthuav qhia noob yog dab tsi?
Nyob hauv ntaueukaryotes, suav nrog tsiaj txhu, nroj tsuag, poov xab, thiab kab, introns tuaj yeemnce gene qhia yam tsis ua haujlwm raws li qhov chaw sib khi rau kev sau npe yam. … Introns tuaj yeem nce qib kev sau ntawv los ntawm kev cuam tshuam tus nqi ntawm kev sau ntawv, kev xa tawm nuclear, thiab kev ruaj ntseg ntawm cov ntawv sau tseg.
Pom zoo:
Pob noob noob noob noob nom noob tswv los?
Cov noob noob hnav tuaj yeem tshwm sim hauv Asia lossis East Africa, thiab cov neeg Iyiv thaum ub tau paub tias tau siv cov noob hauv av ua hmoov nplej. Cov noob tau siv los ntawm Suav tsawg kawg yog 5,000 xyoo dhau los, thiab ntau pua xyoo lawv tau hlawv cov roj los ua cov tshuaj tsw qab rau cov ntawv suav zoo tshaj plaws.
Puas yog dementia los yog noob caj noob ces?
Ntau tus neeg cuam tshuam los ntawm dementia muaj kev txhawj xeeb tias lawv tuaj yeem ua qub txeeg qub teg lossis dhau mus rau dementia. Feem ntau ntawm dementia tsis tau txais los ntawm cov menyuam yaus thiab cov xeeb ntxwv. Hauv qee hom kev dementia uas tsis tshua muaj tshwm sim tuaj yeem muaj kev sib txuas ntawm caj ces, tab sis cov no tsuas yog ib feem me me ntawm tag nrho cov mob dementia.
Nyob rau hauv noob caj noob ces yog dab tsi genotype ntawm hh txhais tau tias?
Lub hauv paus ntawm lo lus no txhais tau tias "tseem" thiab lawv yog tib yam. HH yog ob lub peev thiab hh yog ob qho tib si qis. HH yog homozygous dominant, vim yog lub peev. HH homozygous recessive? Ib lub taub hau tag nrho cov plaub hau yog qhov tseem ceeb, nrog rau homozygous gene ntawm HH.
Dab tsi yog recessiveness hauv noob caj noob ces?
Kev tsis txaus ntseeg, hauv cov noob caj noob ces, qhov tsis ua tiav ntawm ib khub ntawm cov noob caj noob ces (alleles) tam sim no hauv tus neeg los qhia nws tus kheej hauv kev saib xyuas vim muaj kev cuam tshuam ntau dua, lossis dominance, ntawm nws opposite-acting khub.
Dab tsi yog kev nkag mus rau hauv noob caj noob ces?
Penetrance hauv noob caj noob ces yog qhov kev faib ua feem ntawm cov tib neeg uas muaj qhov txawv txav ntawm cov noob uas tseem qhia txog qhov cuam tshuam. txhais li cas los ntawm caj ces penetrance? Penetrance ntsuas qhov feem ntawm cov tib neeg hauv cov pej xeem uas muaj cov noob tshwj xeeb thiab qhia txog qhov muaj feem cuam tshuam.
