Ho utloisisa mekhoa ea lefa ho tloha ho batsoali ho ea ho ngoana
Mathata a mafu a bakoang ke ho fetoha ha liphatsa tsa lefutso . Phetoho ena ea lefutso e ka fetisoa ho tloha ho batsoali ho ea ho ngoana nakong ea bokhachane. Hore na ngoana o tla ba le bothata ba lefutso bo itšetlehile haholo ka mokhoa oa lefa.
Mehlala ea Lefa
Ho na le melao e 'meli e bolelang esale pele monyetla oa hore motho o tla rua boloetse ba lefutso.
Hase hakaalo ho tiisa hore sena se tla etsahala, empa se eketsa kotsi.
Ka mohlala, kankere ea matsoele le maloetse a mangata ka ho fetisisa a lumela hore a amahanngoa le liphatsa tsa lefutso. Leha ho le joalo, boteng ba phetoho ha bo fetole kamehla lefu lena. Ka lehlakoreng le leng, liphetoho tse ling tsa lefutso, tse kang tse amanang le hemophilia , li tla bonahatsa litšobotsi tsa lefu lena (ho sa tsotellehe likhato tse fapaneng tsa boima).
Boikemisetso ba kotsi bo thehiloe ho tse latelang:
- Ebang ho na le kopi e le 'ngoe ea liphatsa tsa lefutso (ho tloha motsoali a le mong) kapa likopi tse peli (ho batsoali ba babeli) li futsitsoeng
- Ho sa tsotellehe hore na phetoho e teng ho e 'ngoe ea li-chromosome tsa thobalano (X kapa Y) kapa e' ngoe ea tse ling tse 22 tsa li-chromosomes tse sa kopaneleng liphate (tse bitsoang autosomes)
E itšetlehile ka litšobotsi tse kopanetsoeng, re ka arola boloetse bona ka ho ba le X-linked, e-linked, autosomal recessive, kapa autosomal e ka sehloohong.
Mathata a ho kopanya le X-Linked
Mathateng a feteletseng a amanang le X, liphatsa tsa lefutso li fetoha ka chromosome ea X (e tšehali).
Banna ba na le X le e 'ngoe ea Y chromosome, ka hona, liphatsa tsa lefutso tsa X chromosome li lekane ho baka lefu lena.
Li-females, ka lehlakoreng le leng, li na le li-chromosome tse peli tsa X, ka hona, liphatsa tsa lefutso tsa X chromosome e tloaelehileng li na le tšusumetso e fokolang ho basali hobane likarolo tse ling tse sa feto-fetohe tse ling li hlakola phello.
Leha ho le joalo, mosali ea nang le phetoho ea liphatsa tsa lefutso ka X chromosome e le 'ngoe e ne e tla ba mohloli oa lefu lena. Seo sena se re bolellang sona ke hore, ho latela palo ea lipalo, karolo ea 50 lekholong ea bara ba hae e tla rua phetoho le ho hlaolela boloetse, ha karolo ea 50 lekholong ea barali ba eona e tla rua phetoho ea 'mele ebe e ba mosireletsi.
Mathata a Amanang le Y
Hobane ke banna feela ba nang le Chromosome ea Y, banna feela ba ka angoa ke 'me ba fetisetsa mathata a amanang le Y. Bara bohle ba monna ea nang le lefu lena le amanang le Y ba tla futsa boemo ba ntat'a bona.
Mathata a ho ipolaea a ho ipolaea
Kaha o na le mathata a ho iketsetsa setho sa autosomal, motho eo o hloka likopi tse peli tsa liphatsa tsa lefutso-e 'ngoe ho motsoali e mong le e mong-ho ba le lefu lena.
Motho ea nang le kopi e le 'ngoe feela e tla ba mosireletsi. Bajaki ba ke ke ba ameha ka tsela leha e le efe ea phetoho kapa ba na le matšoao a lefu lena. Leha ho le joalo, ba ka fetisetsa phetoho ho bana ba bona.
Haeba batsoali ba babeli ba e-na le phetoho ea li-autosomal rection, mathata a bana ba bona ba nang le lefu lena ke a latelang:
- Karolo ea 25 lekholong ea kotsi ea ho futsa liphetoho tse peli le ho ba le lefu lena
- Karolo ea 50 lekholong ea kotsing ea ho rua kopi e le 'ngoe feela le ho ba mosireletsi
- Karolo ea 25 lekholong ea kotsi ea ho se amohele phetoho ea phetoho
Ho feta moo, ngoana e mong le e mong o tla ba le monyetla o tšoanang oa ho futsa liphatsa tsa lefutso.
Mathata a ho Fetisisa a Autosomal
Likoetsong tse kholo tsa autosomal, motho feela o hloka kopi e le 'ngoe ea liphatsa tsa lefutso tse fetohileng kapa ho hlahisa boemo. Banna le basali ba ka 'na ba ameha ka tsela e tšoanang. Ho feta moo, bana ba motho ea nang le bothata bo boholo ba li-autosomal ba na le kotsi ea 50 lekholong ea ho futsa boloetse bona.
> Mohloli:
> Laebrari ea Sechaba ea Meriana ea US: Mekhatlo ea Sechaba ea Bophelo. "Haeba bothata ba liphatsa tsa lefutso bo lekana lelapeng la ka, ke menyetla efe eo bana ba ka ba tla ba le eona?" Reference Reference Home. Bethesda, Maryland; e ntlafalitsoeng ka la 7 November, 2017.