2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Feem ntau, qhov muag tsis pom xim yog tau txais los ntawm ib qho kev cuam tshuam zoontawm X chromosome. Qhov no yog paub nyob rau hauv noob caj noob ces raws li X-txuas recessive qub txeeg qub teg. Raws li qhov tshwm sim, tus mob no feem ntau cuam tshuam rau txiv neej ntau dua li poj niam (8% txiv neej, 0.5% poj niam).
Puas yog xim dig muag autosomal recessive?
Blue-daj xim qhov muag tsis pom kev, los ntawm qhov sib txawv, yog ib qho autosomal dominant disorder thiab yog li ntawd tsis yog kev sib deev thiab yuav tsum tsuas yog ib daim qauv ntawm cov noob tsis zoo los ntawm niam txiv los qhia. Achromatopsia yog an autosomal recessive disorder, tshwm sim tsuas yog thaum ob daim ntawv theej ntawm cov noob tsis raug…
Puas yog xim dig muag yooj yim dominance?
ximblindness is a recessive sex-linked trait. Qhov twg hauv qab no yuav tsum muaj tseeb rau ob niam txiv los tsim ib tug ntxhais dig muag? Ob niam txiv yuav tsum yog neeg dig muag-los yog leej txiv dig muag thiab leej niam yog tus nqa khoom rau qhov muag tsis pom kev.
Dim qhov muag tsis pom kev tshwm sim li cas?
Lub noob lub luag haujlwm rau qhov muag tsis pom xim yog nyob ntawm X chromosome. Hauv lwm lo lus, xim qhov muag tsis pom kev yog qhov X-txuas rov qab mob. Yog ib tug poj niam txais txiaj ntsig ib qho xim tsis pom kev gene thiab ib tus noob hloov pauv, nws yuav tsis yog xim dig muag, vim nws yog qhov tsis zoo.
Puas yog xim dig muag Punnett Square?
Ib qho piv txwv ntawm X-txuas zoo yog liab-ntsuab colorblindness . … Cov txiv neej uas yog X+Y muajib txwm xim vision , hos XcY txiv neej yog colorblind . Punnett Squares . Txhawm rau txiav txim siab qhov qub txeeg qub teg ntawm liab-ntsuab colorblindness (los yog lwm yam X-txuas zoo), cov genotypes ntawm cov niam txiv yuav tsum raug txiav txim siab.
Pom zoo:
Puas pom qhov tseem ceeb yog vim li cas lossis vim li cas ho tsis?
Kev sib txuas lus pom kev pab cov neeg tuaj saib nkag siab cov ntaub ntawv. Nws ua rau kom nkag siab txog cov ntsiab lus. Hom duab ob sab uas pab kev sib txuas lus muaj xws li kos duab, kos duab kos duab, animation, kos npe, typography, graphic designs, thiab lwm yam.
Puas yog qhov tseem ceeb lossis qhov tseem ceeb?
Emphasise thiab hais txog yog ob qhov kev hloov pauv ntawm cov lus qhia uas txhais tau hais tias qhov tseem ceeb ntawm qee yam. Keeb kwm, hais txog yog tus qauv hauv Askiv Askiv, tab sis niaj hnub no, kev hais qhia ntau dua hauv Askiv thiab Asmeskas Askiv.
Dab tsi yog qhov tseem ceeb thiab vim li cas nws tseem ceeb los txheeb xyuas koj qhov tseem ceeb?
Qhov tseem ceeb yuav coj koj hauv kev txiav txim siab hauv lub neej thiab ua rau koj taug qab. Qhov tseem ceeb tshaj plaws, qhov tseem ceeb tshaj plaws yuav ua rau koj ntseeg siab hais tias "tsis yog." Lawv pab koj txheeb xyuas qhov xav tau tiag tiag hauv koj lub neej, piv rau lwm tus xav tias tseem ceeb.
Puas yog threonine tseem ceeb lossis tsis tseem ceeb?
Qhov tseem ceeb amino acids tsis tuaj yeem tsim los ntawm lub cev. Yog li ntawd, lawv yuav tsum tau los ntawm cov khoom noj. 9 cov amino acids tseem ceeb yog: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, thiab valine.
Vim li cas qhov tseem ceeb ntawm qhov muaj zog thiab qhov tsis muaj zog yog qhov tseem ceeb?
Nws yog ib qho tseem ceeb rau qhov tseem ceeb ntawm qhov ua tau zoo thiab qhov tsis muaj zog vim qhov no pab lub tuam txhab txiav txim siab txog thaj chaw uas lawv yuav tsum tau txhim kho ntxiv rau thaj chaw uas lawv ua tau zoo hauv. Vim li cas lub zog thiab qhov tsis muaj zog tseem ceeb?
