Qhov Tseem Ceeb Qhov txawv - Metacentric vs Submetacentric Chromosomes
Cov qauv cellular koom nrog uas Deoxyribose Nucleic Acid (DNA) molecules tau ntim nruj heev yog hu ua Chromosome. Chromosomes nyob hauv lub nucleus thiab muaj tag nrho cov noob uas yog lub luag haujlwm rau kev tsim cov proteins uas xav tau rau kev ua haujlwm sib txawv ntawm cov cell. Tag nrho cov chromosomes hauv cov kab mob sib txawv raws li hom. Hauv tib neeg, muaj 23 khub ntawm chromosomes suav nrog tag nrho ntawm 46 chromosomes. Cov 23 khub no yog tsim los ntawm 22 autosomal chromosome khub thiab ib khub poj niam txiv neej chromosome. Chromosomes tuaj yeem raug cais raws li cov txheej txheem sib txawv los txiav txim siab sib txawv. Raws li txoj hauj lwm ntawm centromere, chromosomes raug categorized ua plaub pawg; Metacentric Chromosomes, Submetacentric Chromosomes, Acrocentric chromosomes thiab Telocentric chromosomes. Hauv metacentric chromosomes, lub centromere nyob hauv nruab nrab ntawm cov chromosomes muab nce mus rau ob txhais tes sib npaug. Submetacentric chromosomes yog cov chromosomes uas lub centromere nyob deb me ntsis ntawm qhov nruab nrab, yog li ua rau cov caj npab ntev tsis sib npaug. Nyob rau hauv tib neeg, feem ntau chromosomes nyob rau hom no. Qhov sib txawv tseem ceeb ntawm Metacentric thiab Sub-metacentric chromosomes yog nyob ntawm qhov chaw ntawm centromere hauv chromosome. Hauv Metacentric chromosomes, lub centromere nyob rau ntawm qhov nruab nrab ntawm chromosome, whereas hauv Submetacentric chromosomes, lub centromere nyob deb me ntsis ntawm qhov nruab nrab.
Metacentric Chromosomes yog dab tsi?
Metacentric chromosomes yog cov chromosomes uas lub centromere nyob rau hauv nruab nrab txoj hauj lwm ntawm chromosome. Lub centromere yog tsim los ntawm ib cheeb tsam DNA, thiab nws yog cov qauv uas tuav ob tug muam chromatids ua ke nyob rau hauv qhov chaw. Tsis tas li ntawd, lub centromere tau koom nrog hauv cov txheej txheem spindle tsim thaum lub sijhawm sib faib ntawm tes. Lub centromere khi rau cov proteins kinetochore los tsim cov cuab yeej spindle thaum lub sij hawm mitosis thiab meiosis.
Daim duab 01: Metacentric Chromosome yog qhia nyob rau nruab nrab txoj hauj lwm
Ua rau cov qauv ntawm cov metacentric chromosomes, lawv yog tsim los ntawm ob txhais tes sib npaug, thiab nyob rau hauv lub cell faib theem, lawv tshwm sim li 'v' zoo li tus qauv thaum lub sij hawm metaphase ntawm cell division. Lub xub ntiag ntawm metacentric chromosomes feem ntau pom nyob rau hauv cov kab mob primitive. Karyotyping siv Giemsa staining tau ua rau cov cytogenetics los qhia cov chromosomes. Lub karyotyping ua rau cov kab mob thaum ntxov los soj ntsuam cov chromosomes metacentric yog hu ua 'symmetric karyotype'. Tib neeg chromosomes 1 thiab 3 yog cov hom no thiab amphibians yog tsim los ntawm metacentric chromosomes.
Dab tsi yog Submetacentric Chromosomes?
Hauv Submetacentric chromosomes, lub centromere nyob deb me ntsis ntawm qhov nruab nrab ntawm chromosome. Yog li ntawd, qhov chaw ntawm lub centromere no ua rau muaj qhov sib npaug ntawm caj npab ntawm chromosome. Hauv kev tsom xam cov qauv ib txwm muaj tom qab karyotyping, cov submetacentric chromosomes zoo li muaj luv dua p caj npab thiab ntev q caj npab.
Daim duab 02: Submetacentric Chromosomes tau qhia nyob rau hauv Thib Peb Txoj Haujlwm
Thaum lub sijhawm mitosis thiab meiosis, cov submetacentric chromosomes xav tias 'L' zoo li tus qauv hauv theem metaphase. Thaum cov metaphase chromosomes tau pom nyob rau hauv lub microscope, hom chromosome no tuaj yeem paub qhov txawv ntawm lwm tus. Feem ntau ntawm tib neeg chromosomes muaj rau hom no.
Dab tsi zoo sib xws ntawm Metacentric thiab Submetacentric Chromosomes?
- Ob hom Metacentric thiab Submetacentric Chromosomes yog tsim los ntawm DNA loj heev.
- Ob qho tib si Metacentric thiab Submetacentric Chromosomes cov qauv yog categorized raws li txoj hauj lwm ntawm lub centromere.
- Ob hom Metacentric thiab Submetacentric chromosomal muaj nyob hauv tib neeg.
- Ob leeg Metacentric thiab Submetacentric Chromosomes cov qauv tuaj yeem txheeb xyuas los ntawm karyotyping siv Giemsa
- Ob qho tib si Metacentric thiab Submetacentric Chromosomes cov qauv tuaj yeem ua rau cov chromosomal aberrations sib txawv lossis kev hloov pauv ua rau muaj teeb meem kev noj qab haus huv sib txawv.
Qhov txawv ntawm Metacentric thiab Submetacentric Chromosomes yog dab tsi?
Metacentric vs Submetacentric Chromosomes |
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| Nyob rau hauv Metacentric chromosomes, lub centromere muab tso rau hauv qhov nruab nrab qhov tseeb ntawm chromosomes muab nce mus rau ob sab caj npab ntev. | Submetacentric chromosomes yog cov chromosomes uas lub centromere muab tso rau me ntsis deb ntawm qhov nruab nrab, yog li ua rau lub caj npab ntev tsis sib npaug. |
| Cov qauv tsim Thaum Metaphase ntawm Cell Division | |
| Metacentric chromosomes tshwm li V-puab hauv metaphase. | Submetacentric chromosomes tshwm sim li L zoo li hauv metaphase. |
| p thiab q arms | |
| Metacentric chromosomes muaj qhov sib npaug p thiab q caj npab. | Submetacentric chromosomes muaj luv dua p caj npab thiab sib piv ntev dua q caj npab. |
Summary – Metacentric vs Submetacentric Chromosomes
Chromosomes yog cov qauv DNA loj heev uas yog lub luag haujlwm rau vaj tse cov noob. Raws li qhov chaw ntawm lub centromere, chromosomes yog categorized li metacentric, submetacentric, acrocentric thiab telocentric chromosomes. Metacentric chromosomes yog cov uas muaj cov centromere tso rau hauv nruab nrab ntawm cov chromosome. Yog li, qhov no ua rau muaj qhov sib npaug p thiab q caj npab. Submetacentric chromosomes yog cov chromosomes uas lub centromere muab tso rau me ntsis deb ntawm qhov chaw. Yog li, hom chromosomes no yog tsim los ntawm luv p caj npab thiab ntev q caj npab. Ob hom muaj nyob rau hauv tib neeg, thiab lawv tuaj yeem pom ntawm karyotyping. Qhov no yog qhov txawv ntawm metacentric thiab submetacentric chromosomes.
Download PDF ntawm Metacentric vs Submetacentric Chromosomes
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li daim ntawv ceeb toom. Thov rub tawm PDF version ntawm no: Qhov txawv ntawm Metacentric thiab Submetacentric Chromosomes
