Kureva unhu. Impact pamusoro chitarisiko uye hutano hwehama

kazhinji sei isu kunzwa kubva vabereki-to-mutsara wokuti, "Handizivi vaizova yakafanana mwana wedu? Zvimwe uchakuregai meso akafanana baba vangu, uye sechipanji saamai? ". Kazhinji vabereki hativimbi zvinokosha genetics, kana akabvunza mibvunzo yakadaro, kunyange zvazvo kuchinja kufanana mwana nemunhu kubva vakuru. Zviri nokuda yedzinza, vana vakaita vabereki, asi haana Dzakafanana wakakwana makopi avo. Izvi kuchinjwa multiplicity uye siyana majini.

Kana mwana akaberekwa, vabereki kungoedza asarudze zvaanoda sokunge, asi kuzviita achiri mangwanani chaizvo. Hongu, anogona kare kuoneka vamwe chikuru unhu nhaka kubva mumwe kana vose vabereki, asi pazera iri vana vari kutsanya chaizvo kuchinja uye kuwana zvinhu mumwe kana mumwe mubereki, vanoonekwa zvishoma recessive uye hukuru unhu tinoberekwa neimwe. Chii hukuru zviratidzo munhu?

Mumwe munhu ane 46 okutodza, iyo kuitika kana munhu Fusion rakakwana gametes. okutodza izvi ane majini mashoko kubva mubereki mumwe, uye zvinova nheyo ramangwana muviri. Pfungwa paumbwe majini hwaro rakaoma chaizvo, ichiri, zviri nyore, mubereki zvose zviratidzo kwete chete muchidimbu, asi ipapo ivo kuva paizwi. Saka zvichava kana mwana wako meso, akafanana amai kana baba, hunoenderana mukana. Pano zvinokosha kuyeuka uye pfungwa hukuru unhu pamusoro. Kubva kuchikoro bhayoroji Chokwadi tose tinoziva kuti majini akakamurwa kupinda uye zvaasingagoni. Panguva yokurwisana dzavo uye kuwana mumwe mubatanidzwa unhu.

By chikuru unhu hanya nevanhu: rima ruvara nameso uye bvudzi, hombe mhino, miromo izere. Zvichitaurwa zviri nyore - zvose rima guru kuda zvipararire pamusoro chiedza uye duku. Ndiko, kana Papa meso mashava uye mai vangu zvitema, ipapo Ungangove, mwana nhaka ruvara pemaziso baba vake. Asi usakanganwa kuti recessive uye hukuru unhu havasi nechiyero nemhedziso yemberi chitarisiko. Somuenzaniso, kana vabereki vose vane meso mashava, maziso mwana chingava mutema. Uyezve, maererano nemitemo genetics, kuratidza recessive unhu kuchengetwa 25% nyaya. Kunze chokwadi kuti pane chikuru unhu, panewo nhoroondo yemhuri, iyo inobata paumbwe mwana chitarisiko. Uyezve, muupenyu akura, pakaita vachange kare ngatitsunge kwete chete nokuda kuvabereki kubatwa, asi zvimwewo zvikonzero womunhu: simba, nzira youpenyu.

Kana tikaedza kuronda nzira iyo nhaka hukuru unhu mune zvizvarwa shoma, tinogona kuona kuti pane zvimwe nguva dzose muna kuonekwa - muchizvarwa ose, chikamu ichi chichange yakawana uye kuva nechokwadi kupinda mumwe vabereki. Zvadaro, iye achaonekwa ari vacheche hafu-kuzvarwa. Uye kana isu kutaura pamusoro recessive katsika - nayo vacharatidza muchizvarwa chimwe, ari kuongorora nhamba, uye nhamba yevana vane zvichaitwa kuchengetwa, achaita chete muzvina.

Zvinosuruvarisa pane pathological nhaka maitiro, iyo anozviratidza sezvo chirwere uye rinogona kutapukira kubva vabereki vana sezvo zvakazara. Asi nokuda kunotouraya pamusoro pathological zviratidzo izvi zvinogona kunze zvachose kubva cheni majini, zvichiita kuti kunyangarika 'dzevarwere kuvabereki maitiro, uye mwana haana kuwanikwa kuti chirwere kuti yave vazhinji kumarudzi yakatevera zvose hama. Avhareji kakawanda enhaka zvirwere yasara dzose. Izvi imhaka yokuti nokuda vaiitawo kuti vanhu chokuita kutama, mumwe yakatarwa majini evanhu ari kugara achiudza. Pamwe chete update kunoitika uye mutation.