Allogene

Auren - da kimiyya da cewa an kakkarfan dangankata da asalin da kuma tarihin 'yan adam. A gaskiya, shi ne ta yarda ya bayyana da mafi m ɓangare na rayuwa da kuma har yanzu mamaki tare da baba misali binciken, misali, kamar nazarin gadar hali da kuma chromosomal cututtuka.

Idan yana da matukar sauki don bayyana manufofin wannan kimiyya, zamu iya cewa halittar jini nazarin da kuma gano alamu na gado na 'yan adam. Alal misali, ya duba yadda za waje ãyõyi (musamman siffar da kai, hanci, ido launi, gashi, da kuma mafi) da kuma ciki (musamman aikin enzyme tsarin). Bugu da kari ya zama a cikin cibiyar na binciken halittar jini ne da wani mutum, duk rayayyun kwayoyin halitta a duniya ne kuma dogara a kan matakai da asali aza a kayyade matakin.

Excellent filin domin gudanar da bincike da masana kimiyya har yanzu suna da rai zuriyar sarauta iyalansu, kamar yadda halaye na kakanninsa, daukar kwayar cutar ta hanyar jerin zamaninsu, kuma yana yiwuwa a yi hukunci a mutum na zuwa wani iyali ko jinsin halittar.

Saboda haka, mu sani cewa dako na kwayoyin bayanai ne da kwayoyin halittu, wanda kowannensu yana da takamaiman kuma shi ne alhakin da wani takamaiman tsari ko wata ãyã daga cikin jiki.

A musamman rawar da ake buga ta a recessive gene, shi wanda ya yi daukawa kayyade bayanai na mutum, wanda dabam a ƙarƙashin rinjayar wani - da rinjaye gene.

Kamar yadda wani janar mulki, hereditary cututtuka, a hankali "rufaffen" recessive gene da kuma ba m, muddin dai ba ya sadu da na biyu na wannan "m" recessive gene.

Ban sha'awa, gaskiya ne: recessive gene iya bayyana kanta a cikin ƙarni da dama a jere, har akwai wannan maras so taron tare da biyu genome.

Alal misali, Habsburg daular na sarakuna daban-daban musamman tsarin da muƙamuƙi da lebe. A artists na lokaci da gaskiya nuna wadannan sabawa a kan iyali hotuna manya. A bayyanar da membobin wannan daular, wanda zai iya gani a sarari su halayyar siffofin: wani lokacin farin ciki ƙananan lebe, cheekbones ba daidai ba, musamman nau'i na ƙananan eyelids, malocclusion. Wannan shi ne sakamakon consanguineous aure, inda ya gane saduwa recessive genes.

Wannan kuma ya shafi ciki da ãyõyinMu - hereditary cututtuka cewa an gada daga iyaye zuwa zuriya.

Recessive gene, amma dai a sakamakon ta hulda da kama, an dauke da masana kimiyya a matsayin barazana ga ci gaba da kuma ci gaba da 'yan adam.

An yi imani da cewa cutar, wanda ci gaba a cikin wadannan lokuta, sau da yawa haddasa mutuwa. Degeneration na HALITTAR ko da preconditions ga degeneration na al'ummai, ya sa ta hanyar duk da dalilin da ya sa, ya ɓadda a karkashin sunan "recessive genes". Lokacin da yawan ƙaruwa zuwa wani mawuyacin jihar, da wata alƙarya yawanci halaka.

Wannan tsari sau da yawa faruwa a raba rufaffiyar al'ummu ko idan akwai mai kaifi miƙa mulki daga manyan yawan zuriyyata a wani sosai low haihuwa. Recessive genes a irin haka ya bayyana more akai-akai a sau. degeneration na facts da aka sani zuwa ga mutãne, tun prehistoric sau.

Ana sa a halin yanzu damuwa cewa kwayoyin halittu na aibi cika sama da mutum yawan jama'a. Za mu iya ɗauka cewa za su zama dukansa m at low haihuwa rates.

External da ciki halaye na wani mutum ya bayyana a sakamakon cewa muhimmi a cikin gādonsa. Ware rinjaye da kuma recessive halaye. Na biyu kungiyar na iya hada da cikakken rashi ko pigmentation zabiya, da kuma irin sabawa kamar launi makanta, ko launi makanta, hemophilia, baldness a mata kurãme-mutism, korau RH. Ban sha'awa shi ne gaskiya cewa launi makanta gado ne matrilineal, tare da mata da kansu da wuya da wahala daga wannan cuta.

Daga cikin mafi kyau jima'i, wadannan recessive dabiu ne kawai prevalent a cikin 0.5% na lokuta, yayin for maza launi makanta ne mafi kowa a 8% na lokuta.