Allogene

Liphatsa tsa lefutso - ea saense e haufi-ufi amanang le qaleho 'me a histori ea moloko oa batho. Ha e le hantle, e ne e le a lumelloa ho senola karolong e rarahaneng oa bophelo le ntse makatsa le tse sibolotsoeng tsa lona ke keng ea lekanngoa, ho etsa mohlala, tse kang ho ithuta lefutso le chromosomal mafu.

Haeba ho ke ke haholo bonolo ho hlalosa merero e le maikemisetso ea saense ena, re ka bolela hore liphatsa tsa lefutso lithuto le ho hlokomela mekhoa ea lefa la moloko oa batho. Ka mohlala, hlahloba matšoao kamoo Link (sebopeho khethehileng tsa hlooho, nko, leihlo mmala, moriri, 'me ho feta) le ka hare (haholo-holo mosebetsi oa tsamaiso ea potlakisang tsebetso ea lik'hemik'hale). Ho phaella ho ho ba ka bohareng ba ho ithuta liphatsa tsa lefutso ke motho, lintho tse phelang tsohle tse phelang Lefatšeng le tsona e itšetlehileng ka dithulaganyo eo qalong a beha boemong ba liphatsa tsa lefutso.

Khabane ka ho Fetisisa ea tšimo bakeng sa bo-rasaense ba ho etsa lipatlisiso ntse ke litloholo phela tsa malapa a borena, e le mekhoa ea baholo-holo ba, fetisoa ka letoto la meloko e, 'me e ke ho bonolo ho ahlola motho bao e leng lelapa le itseng kapa genus.

Ho joalo, rea tseba hore bajari ba lesedi le liphatsa tsa lefutso tse liphatsa tsa lefutso, e mong le e ba e tobileng le e nang le boikarabelo bakeng sa tshebetso e itseng kapa letšoao la 'mele.

A karolo ea khethehileng e phetha ka phatsa ea lefutso recessive, e ne e le eena ea ileng a jarelang lesedi liphatsa tsa lefutso la motho, e leng fapana le tlas'a tšusumetso ea mong - phatsa ea lefutso e ka sehloohong.

Ka puso ea kakaretso, mafu a lefa, haufi-ufi "patilwe" recessive phatsa ea lefutso le ha kotsi e le nako e telele ha e ntse e ha e kopana le ea bobeli ea tšoanang "kulang" phatsa ea lefutso recessive.

Thahasellisang hantle: phatsa ea lefutso recessive ka iponahatsa ka meloko e 'maloa ka ho latellana, ho fihlela ho na le seboka sena se sa batleheng le para liphatsa tsa lefutso.

Ka mohlala, Habsburg lesika la babusi ba fapaneng sebopeho khethehileng ea mohlahare le molomo. The baetsi ba litšoantšo ba nako eo kannete bontša bopengwi tsena ka lelapa Portraits bahlomphehi. Ka ponahalo ea litho tsa leloko la borena la sena, e mong a ka bona ka ho hlaka makgetheng bona bath: a molomo teteaneng tlaase, cheekbones fosahetseng, e leng mofuta o khethehileng oa dintshi tlaase, malocclusion. Sena ke ka lebaka la manyalo consanguineous, moo o ile a hlokomela ho kopana liphatsa tsa lefutso recessive.

Ena e sebetsa ho lipontšo ka hare - mafu lefa hore ba li futsitseng ho batsoali ba bana.

Recessive phatsa ea lefutso, empa ho ena le hoo le ka lebaka la sebelisana lona le tšoanang, ho nkoa ke bo-rasaense ba ka tšokelo e tebileng ho ntshetsopele le ntsetso-pele ea a moloko oa batho.

Ho lumeloa hore lefu lena, e leng hlahisa maemong ana, hangata ho etsa hore lefu. Degeneration tsa genus kapa esita le preconditions bakeng sa degeneration la lichaba, e bakoang ke lebaka 'ohle ao, ikhakanya tlas'a lebitso la "liphatsa tsa lefutso recessive". Ha karolo ea eketseha ho boemo mahlonoko tseo ho leng, palo ea baahi e hangata timela.

Tshebetso ena hangata e nka sebaka ka mekhatlo arohaneng koetsoeng kapa ha ho na le ke phetoho e bohale e tsoang palo e khōlō ea bana ba ka tsoalo tlaase haholo. liphatsa tsa lefutso Recessive maemong a joalo hlaha hangata ho feta linako tse ling. degeneration ea litaba tsebahalang ho moloko oa batho ho tloha mehleng ea prehistoric.

Ho jwale baka ngongoreho ea hore liphatsa tsa lefutso tsa sekoli tlala ea baahi batho. Re ka nahana hore ba ke ba ho feletseng haelloang ka lebelo le tlaase tsoalo.

External le ka hare litšobotsi tsa motho a hlaha ka lebaka la 'nete ea hore ka tlhaho ka lefa la hae. Abelwang karolo ya mekhoa e ka sehloohong le recessive. Sehlopha sa bobeli se ka kenyelletsa ho ba sieo ka ho feletseng kapa pigmentation albinism, le ho kheloha kang bofofu mala kapa bofofu mmala, hemophilia, lefatla ka basali ba sa utloeng litsebeng-mutism, mpe RH. Thahasellisang ke taba ea hore 'mala bofofu lefa la e matrilineal, le basali ba ka seoelo le bothata ba ho lefu lena.

Har'a batho ba bong bo fairer, tsena litšobotsi recessive feela atileng 0.5% ea linyeoe, ha banna ba 'mala bofofu e eketsehileng tloaelehile 8% la linyeoe.