Denver chromosome Mea Maluna me he kumu no ka karyotyping

All ola meaola pihaʻi me nuclei o na keena kekahi mau kau o ka aaiaoe mea. Ma eukaryotic keena, ka mea, ua poe e chromosomes. No ka pono, a me ka helu mahina 'epekema noiʻi systematize karyotype ka hoʻohana' ana i kekahi mau 'ana i kūpono. Ike lea i na ki ina hana like o sequencing aaiaoe mea ma ke kumu hoohalike o ke kanaka chromosomes.

Mea Maluna o kanaka chromosomes

Karyotype - chromosomal hoʻokō (diploid), Aia i loko o kekahi o ka somatic keena. He He ano o ka meaola, a me ka ia i loko o nā mea a pau keena, koe ka wahine.

Chromosome karyotype mea:

• autosomes,ʻaʻole okoa i kanaka o kekahi sexes;
• anal (mea kalaima chromosome) oko i 'ole, mai na holoholona o kekahi mau sexes.

kanaka keena iloko DNA kaula makalii 46, o ka i 22 hui o autosomes a me hoʻokahi - wahine. Kēia diploid 2n i ka aaiaoe mea. Hui i geterohromosom wahine i hōʻike XX, kane - XY, i ka inoa o ka karyotype, niioaaonoaaiii, 44 a me ka 44 + XX + XY.

Ke germ aeee (gametes) mea i loaʻa 'ole hookahi haploid kau 1n DNA. Oocytes iloko 22 autosomes a me kekahi X-chromosome sperm keena - 22 autosomes a me kekahi o geterohromosom, X a me Y.

No ke aha lā i ka 'ike a me ka Mea Maluna o chromosomes

Denver a Paris Mea Maluna nenoaiu o hereditary mea, hoʻomano hoʻohana 'ia ma ka' epekema kaiāulu, ke hoʻololi e unify a generalize i ka manaʻo o ka karyotype. A e like me ka hoʻokokoke ua pono ai no ka pololei hōʻike a me ka hoomaopopo ana i ka noiʻi i nā hualoaʻa ma ka mahinaʻai o aaiaoe?, Karyosystematics,? Aneii.

Schematically eh ÷ ike ai karyotype hoʻohana ideograms - systematized ke kaʻina, a me ka hoonohonoho descendingly chromosome nui. Ideogram Hōʻike 'ole wale na Ana o ka helical DNA, akā, kekahi morphological ano, a oi loa aku hoi i ko lakou iniiaiie' ole (hetero- a euchromatin māhele'āina).

Ma ke kālailai mau pakuhi hookupaa aku i ka degere o ka pilina ma waena o kekahi mau taxonomic pūʻulu o meaola.

Ke karyotype paha e kekahi mau no autosomes, kokoke e'ālike i ka nui, e ka mea paakiki, e hooponopono i ka henua a me ka helu. mea kiko'î nā Denver a me Paris Mea Maluna o kanaka chromosomes noonoo.

I ka hopena o ka hālāwai kūkā ma Denver, 1960

I ia makahiki, i loko o ke kūlanakauhale o Denver, USA, e paʻa ana i ka hālāwai kūkā ma ka kanaka chromosomes. Ia kekahi mau hoʻokokoke mai, e codify chromosomes (nui, wahi centromere ioauoa me ka loli iki ana degere o ka helix a me ka 'ole. D.) Ua hui i loko o ka hoʻokahi kahua.

Nā manaʻo hoʻoholo o ka hālāwai kūkā i ka ai-i kapaia o Denver Mea Maluna o kanaka chromosomes. Kēia'ōnaehana ua alakaʻiʻia e nā loina o ka:

1. i helu consecutively All kanaka autosomes mai 1 a hiki i 22 me ka emi ana o kā lākou lōʻihi, nā kiʻie chromatids ia designations X a me Y.
2. Chromosome karyotype maheleia i 7 pūʻulu me ka hoʻolako 'centromere, i ke alo o nā ukali, a kiʻekiʻe constrictions ma chromatids.
3. E Nohie i ka Mea Maluna hoʻohana centromeric 'inideka, a he pōpilikia ma ka mahele ana i ka lōʻihi o ka pōkole lima o ka holoʻokoʻa lōʻihi o ka chromosome, a ua olelo ia e like me ka pakeneka.

Denver Mea Maluna o chromosomes ua nui ike i loko o ka 'āina' epekema kaiāulu.

chromosome pūʻulu a me ko lakou mau ano

Denver chromosome Mea Maluna kikowaena ehiku pūʻulu ma i autosomes i hoonohonoho ma ka mea o ka helu, akā, unevenly haawi i ka mea. O ke kumu ho i ka hiʻona no i ka mea, e puunaue i loko o nā pūʻulu. E heluhelu hou e pili ana i kēia i loko o ka papaʻaina.

E like me 'oe ke ike, no ka Denver Mea Maluna o chromosomes ka nānā' ana ma luna o morphology Ka Ikepili, me kekahi manipulation o ka DNA.

Paris Mea Maluna o kanaka chromosomes

Ke kumu o keia Mea Maluna, wahahee i loko o ka makahiki 1971, ma muli o ka hakakā o palena pau i hookohu aku i ka chromatin. E like me ka hopena, oaeouee? Pena a pau chromatids lilo kona kumu iho ka malamalama a me ka pouli ka poe hao wale o ka, hiki hoopuni hōʻike 'i loko o nā pūʻulu.

Ma ka iapaau ana o kekahi mau make o chromosomes ia akulla kanaka Hoʻohana:

• Q-chromosome Hoʻohana fluoresce like me ka hopena o ke kalameaʻai-quinacrine makeke.
• G-Hoʻohana i hōʻike 'ia ma hope o Giemsa i hookohu aku i iaoia (ka mea ia me Q-Hoʻohana).
• R-i hookohu aku i Hoʻohana mua ma ka lāʻau wela denaturation.

hou hōʻailona e hoʻolauna e hōʻike i ka wahi o nā'ōewe ma chromosomes:

1. Ka lōʻihi lima o ka chromosome hōʻikeʻia e ka haʻahaʻa case letter Q, pōkole - lowercase p.
2. Loko poʻohiwi līkaia mai i 4 mau mea, i i heluʻia, mai ka centromere a hiki i ka telomere hopena.
3. Helu o nā alaʻololī mea i loko o nā wahi i loko o ke ala e hiki aku, mai ka centromere.

Inā i ke kūlana o ka'ōewe ma ka chromosome ua ike pololei, kona wahi o ka Papa kuhikuhi o ka loloa. I ka wā o ka'ōewe IIeEeAIEUAA emi definite, ia Kû ke kai piha i loko o ka loa a me ka pōkole lima.

No ka pololei kŰia ha o chromosomes, hybridization a me ka mutagenesis study kekahi hookahi iaoia mea paʻa mau. Denver chromosome Mea Maluna, a Paris ma keia hihia e inextricably ua hoʻopili a hoʻokō i kekahi i kekahi.