2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Palindrome: Hauv cov noob caj noob ces, a DNA lossis RNA qib uas nyeem tib yam hauv ob qho lus qhia. Cov chaw ntawm ntau qhov txwv enzymes uas txiav (txheej) DNA yog palindromes.
Palindrome hauv caj ces yog dab tsi?
Abstract. Lub palindrome hauv DNA zoo li lub palindrome hauv cov lus, tab sis thaum nyeem rov qab, nws yog ib qho ntxiv ntawm cov kab ke pem hauv ntej; ua tau zoo, ob qho tib si ntawm ib ntu sib txuas ua ke los ntawm nws qhov nruab nrab zoo li hauv ob txoj hlua ntawm DNA.
Dab tsi yog palindromes hauv DNA muab piv txwv?
Ib kab lus palindromic yog ib ntu ua los ntawm nucleic acids nyob rau hauv ob lub helix ntawm DNA thiab/los yog RNA uas yog tib yam thaum nyeem los ntawm 5 'mus rau 3' ntawm ib txoj hlua thiab 5' rau 3' ntawm lwm qhov, complementary, kev. … Ib qho piv txwv ntawm ib kab lus palindromic yog 5'-GGATCC-3', uas muaj cov hlua txuas ntxiv, 3'-CCTAGG-5'.
Dab tsi yog hu ua palindrome sequence ntawm DNA?
Ib kab lus palindromic yog a nucleic acid sequence nyob rau hauv ib tug ob-stranded DNA los yog RNA molecule nyob rau hauv kev nyeem ntawv nyob rau hauv ib tug tej yam kev taw qhia (piv txwv li 5' rau 3') ntawm ib tug strand matches qhov kev nyeem ntawv nyob rau hauv qhov kev coj rov qab (piv txwv li 3' txog 5') ntawm qhov sib ntxiv strand.
Dab tsi yog palindrome hauv DNA thiab dab tsi yog ib txoj haujlwm?
Ib palindrome, xws li nto moo "Ib tug txiv neej, ib txoj kev npaj, ib tug kwj dej, Panama," nyeem tib yam nyob rau hauv ob qho tib si qhia. Hauv DNA thiab RNA ntiaj teb lo lus txhais tau hais tias ib txoj hlua nyeemtib yam nyob rau hauv lub 5′ → 3′ kev taw qhia raws li lub complementary strand nyeem nyob rau hauv lub 5′ → 3′ kev taw qhia.
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.
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.
Nyob hauv lub ntsiab txhais ntawm noob caj noob ces?
Ib tug tseem ceeb, lossis ib qho tseem ceeb ntawm cov noob, yog ib qho txawv ntawm cov noob, uas rau ntau yam laj thawj, nthuav tawm nws tus kheej ntau dua los ntawm nws tus kheej dua li lwm yam ntawm cov noob uas tus neeg nqa tau, thiab, qhov no, tus recessive.
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.
