PTC tasting tau txais txiaj ntsig li cas?
PTC tasting tau txais txiaj ntsig li cas?

Video: PTC tasting tau txais txiaj ntsig li cas?

Video: PTC tasting tau txais txiaj ntsig li cas?
Video: ТАКОВ МОЙ ПУТЬ В L4D2 2024, Kaum ib hlis
Anonim

Xyoo 1932 nws tau luam tawm ib txoj kev tshawb fawb pej xeem uas qhia tau tias PTC tasting yog tau qub txeeg qub teg raws li ib tug dominant Mendelian traits. Rau xya xyoo lawm, Blakeslee cov caj ces piav qhia ntawm tus PTC tasting tau txais dav dav: tasters muaj ib los yog ob daim ntawv luam ntawm ib tug taster allele, tab sis tsis-tasters yog recessive homozygotes.

Kuj paub yog, yog lub peev xwm los saj PTC tseem ceeb los yog recessive?

PTC - tasting muaj peev xwm yog ib hom kab mob yooj yim tswj hwm los ntawm ib khub ntawm alleles, tseem ceeb T rau saj thiab rov ua dua t rau qhov tsis txaus ntseeg.

Tom qab ntawd, lo lus nug yog, nws txhais li cas yog tias koj tsis tuaj yeem saj PTC? rhiab heev rau iab saj yog qhov tseem ceeb. Qhov ntawd txhais yog tias ob leeg ntawm koj niam txiv saj tsis tau PTC , koj ' kuj tseem yuav tsis pom PTC cov iab.

Ib tug kuj yuav nug, tus neeg yuav saj PTC li cas?

Nws muaj cov khoom txawv txawv uas nws ib yam saj heev iab los yog zoo li tasteless, nyob ntawm seb lub caj ces pleev ntawm lub taster. Lub peev xwm mus saj PTC feem ntau raug kho raws li qhov tseem ceeb ntawm caj ces, txawm hais tias kev xeeb tub thiab kev qhia ntawm qhov kev zoo no yog qhov nyuaj dua.

Qhov feem pua ntawm cov pej xeem tuaj yeem saj PTC?

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