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Koj txiav txim siab qhov kev ncua deb ntawm cov noob li cas?
Koj txiav txim siab qhov kev ncua deb ntawm cov noob li cas?

Video: Koj txiav txim siab qhov kev ncua deb ntawm cov noob li cas?

Video: Koj txiav txim siab qhov kev ncua deb ntawm cov noob li cas?
Video: ET Yaj & Sua Ham - Kev Hlub Txiav Tsis Tau 2024, Kaum ib hlis
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Ib yam li ib tug yuav nug, koj ntsuas qhov deb ntawm daim duab qhia li cas?

Ntsuas qhov deb ntawm cov ntsiab lus

  1. Hauv koj lub computer, qhib Google Maps.
  2. Right-click rau koj qhov chaw pib.
  3. Xaiv ntsuas nrug.
  4. Nyem qhov twg los tau ntawm daim ntawv qhia los tsim ib txoj hauv kev los ntsuas.
  5. Yeem: Luag ib qho taw tes lossis txoj hauv kev txav nws, lossis nyem qhov taw tes kom tshem nws.
  6. Hauv qab, koj yuav pom tag nrho cov kev ncua deb hauv mais (mi) thiab mais (km).

Tsis tas li ntawd, Independent Assortment yog dab tsi? Kev txhais ntawm ywj siab assortment .: kev tsim ntawm kev sib txuas ntawm chromosomes hauv meiosis thiab cov noob ntawm cov khub sib txawv ntawm homologous chromosomes los ntawm txoj cai raws li txoj cai ntawm qhov tshwm sim ntawm ib qho ntawm txhua tus diploid khub ntawm homologous chromosomes rau hauv txhua gamete ywj siab ntawm ib leeg khub.

Kuj Paub, koj pom qhov kev ncua deb ntawm cov noob thiab lub centromere li cas?

Yog li ntawd, peb ua tau xam tus nyob deb ntawm a noob los ntawm nws chaw nyob tsuas yog faib cov feem pua ntawm qhov thib ob faib octads los ntawm 2.

Kev sib txuas ntawm caj ces yog dab tsi thiab thaum twg nws tshwm sim?

Recombination tshwm sim thaum ob molecules ntawm DNA pauv daim ntawm lawv caj ces cov khoom nrog ib leeg. Ib qho piv txwv tseem ceeb tshaj plaws ntawm recombination tshwm sim thaum lub sij hawm meiosis (tshwj xeeb, thaum lub sij hawm prophase I), thaum homologous chromosomes kab nyob rau hauv khub thiab sib pauv ntu ntawm DNA.

Pom zoo: