Video: Puas yog PTC saj dominant lossis recessive?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
PTC - saj muaj peev xwm yog ib qho yooj yim genetic cwj pwm tswj los ntawm ib khub ntawm alleles, tseem ceeb T rau saj thiab rov ua dua t rau qhov tsis txaus ntseeg.
Hais txog qhov no, vim li cas PTC tasting lub noob tseem ceeb?
Muaj peev xwm saj PTC feem ntau kho raws li ib tug qhov tseem ceeb ntawm caj ces , txawm tias nws yog qub txeeg qub teg thiab kev nthuav qhia ntawm qhov no qhov zoo yog ib co complex. PTC kuj inhibits melanogenesis thiab siv los loj hlob pob tshab.
Ib sab saum toj no, PTC saj tsis tiav dominance? Tsis tiav dominance yuav ua rau peb phenotypes: non-taster, qaug zog taster, los yog muaj zog taster. Qhov no kuj txhais tau hais tias tsis muaj lub zog ntawm lub taster, TT & Tt ob qho tib si ua rau muaj peev xwm saj cov compound. Los ntawm kev tshawb fawb yav dhau los, PTC tasting tsis ua raws li cov qauv Mendelian, uas ua tiav kev tswj hwm.
Kuj paub, yog PTC autosomal dominant?
Muaj peev xwm saj PTC yog inherited hauv ib autosomal tseem ceeb qauv.
Vim li cas qee tus neeg saj PTC?
Fox xav tias tus saj yog vim PTC particles raug tshem tawm hauv huab cua thiab qhov ntawd qee tus neeg tau muaj peev xwm saj cov tshuaj thaum lwm tus tau tsis yog. Nws muaj tau pom tias muaj peev xwm saj ntuj tshuaj zoo ib yam li PTC pab tib neeg poj koob yawm txwv nyob deb ntawm qee tej yam tshuaj lom.
Pom zoo:
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