Tus Sau: Marcus Baldwin
Hnub Kev Tsim: 22 Lub Rau Hlis Ntuj 2021
Hloov Hnub: 13 Lub Ob Hli Ntuj 2025
Anonim
What is a Chromosome?
Daim Duab: What is a Chromosome?

Chromosomes yog cov qauv nyob hauv qhov chaw (nucleus) ntawm cov hlwb uas nqa ntau daim DNA ntev ntev. DNA yog cov ntaub ntawv uas tuav noob. Nws yog lub tsev thaiv ntawm tib neeg lub cev.

Cov Chromosomes tseem muaj cov proteins uas pab DNA muaj nyob hauv daim ntawv tsim nyog.

Chromosomes tuaj hauv ua khub. Feem ntau, txhua lub cell hauv tib neeg lub cev muaj 23 khub ntawm chromosomes (46 tag nrho cov chromosomes). Ib nrab tuaj ntawm niam; lwm ib nrab tuaj ntawm txiv.

Ob ntawm cov chromosomes (X thiab Y chromosome) txiav txim siab koj tus pojniam txivneej lossis pojniam thaum koj yug. Lawv hu ua poj niam txiv neej pw:

  • Cov poj niam muaj 2 x chromosomes.
  • Cov txiv neej muaj 1 X thiab 1 Y chromosome.

Tus niam muab cov X chromosome rau tus menyuam. Leej txiv yuav hais ib tus X lossis Y. Cov chromosome los ntawm leej txiv txiav txim yog tias tus menyuam yug los ua poj niam lossis txiv neej.

Cov chromosomes uas tseem tshuav yog hu ua autosomal chromosomes. Lawv muaj npe hu ua chromosome khub 1 txog 22.

  • Chromosomes thiab DNA

Chromosome. Taber Ntawv Kho Mob Phau Ntawv Online. www.tabers.com/tabersonline/view/Tab--Dhau/753321/all/chromosome?q=Chromosome&ti=0. Hloov tshiab 2017. Nkag Mus Siv Lub Tsib Hlis 17, 2019.


Stein CK. Kev siv cov cytogenetics hauv pathology niaj hnub. Hauv: McPherson RA, Pincus MR, eds. Henry's Kev Kuaj Mob thiab Kev Tswj Xyuas los ntawm Laboratory Txoj KevCov. 23rd ed. St Louis, MO: Elsevier; 2017: chap 69.

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