Qhov Tseem Ceeb Qhov Sib Txawv - Niam Txiv Hom vs Hom Chromosomes Recombinant
Chromosomes yog cov qauv zoo li cov qauv uas DNA tau ntim rau hauv lawv cov nuclei. Hauv ib lub cell diploid, muaj 23 khub ntawm chromosomes (tag nrho ntawm 46 chromosomes). Hauv gametes, tsuas yog 23 chromosomes pom. Yog li lawv yog cov hlwb haploid. Meiosis yog ib hom kev faib cell tshwm sim thaum lub sij hawm gamete tsim hauv kev sib deev. Nyob rau hauv ib theem ntawm meiosis, homologous chromosomes ua ke nrog ib leeg thiab ua bivalents. Ntu ntawm homologous chromosomes sib cuag nrog ib leeg thiab ua chiasmata. Thaum tus muam chromatids crossover nrog ib leeg, chiasmata yog tsim. Kev tsim Chiasmata yog qhov tseem ceeb rau kev sib pauv cov khoom siv caj ces ntawm homologous chromosomes hauv meiosis. Thaum homologous chromosomes pauv lawv ntu ntawm chromosomes lossis cov khoom siv caj ces, cov chromosomes hu ua recombinant chromosomes. Thaum homologous chromosomes tsis pauv lawv cov khoom siv caj ces vim tsis muaj qhov sib txawv ntawm homologous chromosomes, cov chromosomes zoo ib yam li niam txiv chromosomes. Qhov sib txawv tseem ceeb ntawm niam txiv hom chromosomes thiab recombinant hom chromosomes cia siab rau qhov tshwm sim los yog tsis muaj crossover ntawm homologous chromosomes. Crossover tsis tshwm sim nyob rau hauv niam txiv hom chromosomes thaum crossover tshwm sim nyob rau hauv recombinant hom chromosomes.
Niam Txiv Hom Chromosomes yog dab tsi?
DNA lossis cov khoom siv caj ces tuaj yeem hloov pauv thaum chiasmata tsim los ntawm cov tsis yog tus muam chromatids ntawm homologous chromosomes. Qhov no tshwm sim thaum lub sij hawm meiosis thiab nws yog tus txheej txheem hu ua crossover. Txawm li cas los xij, hla ntawm homologous chromosomes tsis yog txheej txheem nquag tshwm sim. Thaum crossover tsis tshwm sim, homologous chromosomes cais mus rau gametes yam tsis tau pauv lawv cov khoom siv caj ces. Yog li, cov menyuam ntxhais tau txais chromosomes uas zoo ib yam li niam txiv chromosomes.
Cov kev sib xyaw ua ke tseem zoo ib yam li lawv nyob hauv niam txiv chromosomes. Li no, tsis muaj qhov sib txawv ntawm cov noob sib txuas ntawm niam txiv thiab tus ntxhais chromosomes. Ua rau cov xeeb ntxwv zoo li niam txiv.
Dab tsi yog Recombinant Hom Chromosomes?
Chromosomal crossover yog txheej txheem uas pauv cov khoom siv caj ces ntawm homologous chromosomes. Qhov no tshwm sim tsuas yog thaum lub sij hawm meiotic cell division. Thaum homologous chromosomes pauv lawv cov khoom siv caj ces, qhov tshwm sim chromosomes dais cov noob sib txuas tshiab. Li no, lawv hu ua recombinant chromosomes.
Recombinant chromosomes yog lub luag haujlwm rau kev hloov caj ces ntawm cov xeeb ntxwv. Crossover yog ib qho txheej txheem ib txwm muaj thiab nws yog txheej txheem tseem ceeb hauv kev sib deev. Yog li, kev tsim cov chromosomes recombinant tsis suav tias yog kev hloov pauv. Nws tsis ua rau muaj kev hloov pauv loj hauv cov ntaub ntawv caj ces vim yog kev sib pauv ntawm allelic txoj haujlwm ntawm kev sib txuam chromosomes tsis zoo li kev hloov pauv (ib hom kev hloov pauv uas tshwm sim ntawm cov chromosomes uas tsis yog homologous) vim tias crossover feem ntau tshwm sim thaum sib txuam thaj tsam ntawm ib homologous chromosome so thiab reconnect. nrog rau lwm thaj tsam sib txuam ntawm homologous chromosome.
Daim duab 01: Recombinant Chromosomes
Recombinant chromosomes ua rau cov xeeb ntxwv xeeb ntxwv uas tsis zoo li niam txiv phenotypes. Lawv ua rau muaj ntau haiv neeg ntawm cov kab mob.
Dab tsi yog qhov zoo sib xws ntawm Niam Txiv Hom thiab Hom Chromosomes rov ua dua?
- ob leeg yog DNA molecules.
- Ob leeg yog hom chromosomes.
- Ob leeg lav qhov qub txeeg qub teg ntawm niam txiv mus rau cov xeeb ntxwv.
Dab tsi yog qhov txawv ntawm Niam Txiv Hom thiab Recombinant Hom Chromosomes?
Hom Niam Txiv vs Recombinant Hom Chromosomes |
|
| Niam txiv hom chromosomes yog cov chromosomes uas zoo ib yam li niam txiv chromosomes vim tsis muaj kev hla ntawm homologous chromosomes. | Recombinant hom chromosomes yog chromosomes uas tsim tawm vim hla ntawm homologous chromosomes. |
| Allele Combinations | |
| Niam txiv hom chromosomes tsis tsim kev sib txuas tshiab ntawm alleles ntawm chromosomes. | Recombinant hom chromosomes tsim kev sib txuas tshiab ntawm alleles ntawm chromosomes. |
| Niam txiv hom chromosome ntau zaus. | Recombinant hom chromosomes tsawg zaus. |
| Kev hloov pauv caj ces | |
| Niam txiv hom chromosomes tsis ua rau muaj ntau haiv neeg. | Recombinant hom chromosomes ua rau muaj ntau haiv neeg. |
| khoom siv noob caj noob ces | |
| Niam txiv hom chromosomes tsis muaj cov khoom siv caj ces ntawm ob qho tib si chromosomes homologous. | Recombinant hom chromosomes muaj cov khoom siv caj ces ntawm ob qho tib si chromosomes homologous. |
Summary – Niam Txiv Hom vs Recombinant Hom Chromosomes
Kev hla ntawm homologous chromosomes muab txoj hauv kev los pauv cov ntaub ntawv caj ces ntawm homologous chromosomes. Thaum crossover tshwm sim, nws tsim recombinant chromosomes. Yog li, cov menyuam ntxhais tau txais kev sib txuas tshiab ntawm chromosomes. Ntawm qhov tod tes, thaum crossover tsis tshwm sim, tsis muaj peev xwm pauv cov khoom siv caj ces ntawm homologous chromosomes. Yog li ntawd, qhov tshwm sim chromosomes yuav zoo ib yam li niam txiv chromosomes. Cov menyuam ntxhais yuav tau txais cov chromosomes uas zoo li niam txiv chromosomes. Kev hloov pauv ntawm niam txiv chromosomes rau hauv cov chromosomes recombinant yog tag nrho nyob ntawm kev hla. Qhov no yog qhov txawv ntawm Niam Txiv Hom thiab Recombinant Hom Chromosomes.
Download the PDF Version of Parent Type vs Recombinant Type 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 Niam Txiv Hom thiab Hom Chromosomes rov ua dua
