Cov txheej txheem:

Koj quav koj tus nplaig li cas?
Koj quav koj tus nplaig li cas?

Video: Koj quav koj tus nplaig li cas?

Video: Koj quav koj tus nplaig li cas?
Video: Tus Lej koj nyiam yuav qhia tau koj tus Yam Ntxwv thiab Peev Xwm 2024, Kaum ib hlis
Anonim

Cov kauj ruam

  1. Xovxwm koj tus nplaig tawm tsam hauv qab ntawm koj qhov ncauj. Koj tuaj yeem hu qhov no hauv pem teb ntawm koj qhov ncauj.
  2. Flatten koj tus nplaig npog hauv qab ntawm koj qhov ncauj.
  3. Curl cov ntug koj tus nplaig ywj siab.
  4. Curl cov ntug koj tus nplaig ua ke.
  5. Nias koj tus nplaig tawm thaum tuav nws cov duab.

Tsis tas li ntawd, txhua tus tuaj yeem quav lawv tus nplaig?

Tus nplaig dov yog lub peev xwm los yob cov tom qab ntawm cov nplaig nce mus rau hauv ib lub cev. Cov lus cov leeg ntawm sab hauv tso cai rau qee tus neeg tsim lawv tus nplaig rau hauv cov duab tshwj xeeb. Nrov kev ntseeg ntseeg tau hais tias kev hloov pauv hauv qhov kev muaj peev xwm no yog qhov tshwm sim ntawm cov noob caj noob ces.

Tom qab ntawd, lo lus nug yog, nws txhais li cas thaum koj tuaj yeem quav koj tus nplaig? Qhov no yog attracted rau tus gene rau form tus cov yam ntxwv zoo. Tus nplaig dov peev xwm tshwm sim vim tus cawv ntawm a tseem ceeb allele ntawm noob. A tus neeg uas muaj ib yam ib or ob daim ntawv luam ntawm tseem ceeb allele yuav muaj peev xwm totwist lawv tus nplaig.

Yog li ntawd, yog tus nplaig dov R's caj ces?

Xav tias koj nplaig yog tsim nyog ib txwm, koj kawm tau yob koj R's . (Muaj ib yam mob uas tsis tshua muaj tshwm sim uas cuam tshuam kev txav mus los nplaig . Qee qhov ntawm cov xwm txheej no, ib qho alveolar trill yuav ua tsis tau.) Cov neeg feem ntau txhawj xeeb tias lawv tsis muaj peev xwm trill yog caj ces.

Puas yog tus nplaig dov dominant lossis recessive?

Tus nplaig dov muaj peev xwm yuav yog vim ib tug singlegene nrog lub peev xwm yob tus nplaig ib tseem ceeb qhov zoo thiab qhov tsis muaj nplaig dov peev rov ua dua qhov zoo. Txawm li cas los xij, muaj qee cov lus nug txog kev ua vaj ntxwv ntawm nplaig dov . Cov kev tshawb fawb tsis ntev los no tau pom tias nyob ib ncig ntawm 30% ntawm cov menyuam ntxaib zoo tib yam tsis qhia qhov zoo.

Pom zoo: