Dab tsi yog qhov chaw tshwj xeeb ntawm cov noob ntawm chromosome?
Dab tsi yog qhov chaw tshwj xeeb ntawm cov noob ntawm chromosome?

Video: Dab tsi yog qhov chaw tshwj xeeb ntawm cov noob ntawm chromosome?

Video: Dab tsi yog qhov chaw tshwj xeeb ntawm cov noob ntawm chromosome?
Video: Leng Yang - Yog Vim Dab Tsi (Official Full Song | Nkauj Tawm Tshiab) 2020/05/24 2024, Kaum ib hlis
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Hauv cov noob caj noob ces, locus (plural loci) yog a tshwj xeeb , tsau txoj hauj lwm ntawm a chromosome qha a tshwj xeeb gene los yog caj ces marker yog nyob.

Ua li no, qhov chaw ntawm cov noob ntawm ib chromosome yog dab tsi?

Cov noob ntawm ib leeg chromosome tau teem caij nyob rau hauv ib ntus, thiab txhua noob muaj ib qho tshwj xeeb qhov chaw ntawm chromosome (hu ua nws locus). Ntxiv nrog rau DNA, chromosomes muaj lwm yam tshuaj uas cuam tshuam noob muaj nuj nqi.

Ib yam li ntawd, koj yuav txheeb xyuas cov chromosomes li cas? Nyob rau hauv ib tug muab hom, chromosomes tuaj yeem yog txheeb xyuas los ntawm lawv tus lej, qhov loj me, txoj haujlwm centromere, thiab cov qauv banding. Hauv tib neeg karyotype, autosomes lossis lub cev chromosomes ” (Txhua yam tsis yog poj niam txiv neej chromosomes ) feem ntau yog tsim nyob rau hauv kwv yees li ntawm qhov loj los ntawm qhov loj tshaj ( chromosome 1) mus rau qhov tsawg tshaj plaws ( chromosome 22).

Kuj paub yog, cov noob nyob qhov twg?

Lawv pom nyob rau hauv yuav luag txhua lub cell lub nucleus thiab yog tsim los ntawm strands ntawm DNA (deoxyribonucleic acid). Ntu ntawm DNA hu ua "genes" yog cov khoom xyaw. Txhua tus noob ntxiv ib qho protein tshwj xeeb rau hauv daim ntawv qhia. Proteins tsim, tswj thiab tswj koj lub cev.

Lub luag haujlwm ntawm chromosome 13 yog dab tsi?

Chromosome 13 yog qhov loj tshaj plaws acrocentric tib neeg chromosome . Nws nqa cov noob koom nrog hauv kev mob qog noj ntshav nrog rau hom mob cancer mis 2 (BRCA2) thiab retinoblastoma (RB1) cov noob, feem ntau rov kho dua hauv B-cell chronic lymphocytic leukemia, thiab muaj DAOA locus txuam nrog kev puas siab puas ntsws bipolar thiab schizophrenia.

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