Nws muaj tseeb tias zoo tib yam ntxaib faib lawv DNA code rau ib leeg. Qhov no yog vim cov menyuam ntxaib zoo tib yam tau tsim los ntawm tib cov phev thiab qe los ntawm lawv txiv thiab niam. (Qhov sib txawv, cov menyuam ntxaib yog tsim los ntawm ob lub phev sib txawv thiab ob lub qe sib txawv.)
Cov menyuam ntxaib puas muaj DNA tib yam?
Nyob rau hauv txoj kev tshawb fawb tshiab ntawm ntau dua 300 khub ntawm cov menyuam ntxaib zoo ib yam, tsuas yog 38 muaj DNA zoo tib yam. Kev tshawb fawb luam tawm thaum Lub Ib Hlis 7 hauv phau ntawv journal Nature Genetics qhia tias cov menyuam ntxaib zoo ib yam txawv ntawm qhov nruab nrab ntawm 5.2 genetic mutations.
Yuav ua li cas feem pua ntawm DNA ua tus menyuam ntxaib sib koom?
Meanwhile, tib tus menyuam ntxaib sib koom 100 feem pua ntawm lawv cov DNA, thiab cov kwv tij ntxaib sib faib 50 feem pua ntawm lawv cov DNA (sib npaug li cov kwv tij).
Puas yog cov kwv tij uas tsis zoo ib yam ntxaib muaj DNA tib yam?
"Nruab nrab" thiab "Txog"
Technically nws muaj peev xwm rau cov kwv tij sib koom tsis muaj DNA lossis tag nrho lawv DNA (txawm tias lawv tsis zoo ib yam ntxaib). Qhov no muaj tseeb vim hais tias tus nqi uas ob tus neeg muaj feem cuam tshuam nrog caj ces tag nrho yog nyob ntawm kev sib xyaw ua ke!
Pob ntxaib zoo tib yam los ntawm niam los yog txiv?
Yog li, muaj tus menyuam ntxaib tsis yog vim yog caj ces. Ntawm qhov tod tes, cov kwv tij ntxaib tuaj yeem khiav hauv tsev neeg. Qhov tseeb, tus poj niam uas muaj kwv tij uas yog kwv tij ntxaib yog 2.5 npaug ntawm qhov yuav muaj menyuam ntxaib tshaj qhov nruab nrab!
