Marudzi eGenotype uye Kubatana Kwayo neHunhu
Muzvidzidzo zvebhayoloji, kunzwisisa pfungwa ye genotype uye kuti inobatana sei neunhu hwechisikwa, kana kuti phenotype, chinhu chikuru pakuburitsa zvakavanzika zvehupenyu. Genotype ne phenotype mazwi anoshandiswa kakawanda mumajini, uye ese ari maviri ane basa rakakosha mukuona hunhu hwemuviri nemaitiro echisikwa chipenyu chimwe nechimwe. Chinyorwa chino chichaongorora genotype zvakadzama, kuti inobatana sei nehunhu, uye basa renharaunda mukukanganisa kuratidzwa kwemajini.
Kunzwisisa Marudzi Ezvinhu
Genotype inoreva chimiro chemajini emunhu uye ndiyo hwaro hwehunhu hwese hwaakagara nhaka. Ndiwo muunganidzwa weruzivo rwemajini runopfuudzwa kubva kuvabereki kuenda kuvana. Genotype inosanganisira maallele ese, kana kuti marudzi emajini, ayo munhu angave nawo. Kodhi inowanikwa muDNA iri mumachromosomes ndiyo inosimbisa genotype iyi.
Jini rega rega rinowanzova ne alleles mbiri, dzinogona kuva dzakafanana (homozygous) kana dzakasiyana (heterozygous). Musanganiswa we alleles idzi unosarudza genotype yemunhu. Semuenzaniso, muvanhu, jini reruvara rwemaziso rinogona kuva ne allele yemaziso ebhuruu uye allele yemaziso ebrown. Musanganiswa we alleles idzi unoratidza kana munhu aine maziso ebhuruu kana ebrown.
Ukama huripo pakati peGenotype nePhenotype
Kunyange zvazvo genotype iri kutevedzana kwemacode emajini, kuratidzwa kunooneka kana kuyerwa kwegenotype iyoyo kunozivikanwa se phenotype. Ma phenotype anosanganisira zvinhu zvese zvinoonekwa zvakaita seruvara rwebvudzi, kureba, maitiro, uye kunyange kubatwa nezvirwere zvakasiyana.
Haasi majini ese ari mu genotype acharatidzwa sechikamu che phenotype. Kuonekwa kwemajini kunogona kukanganiswa nekuwanda kwemajini. Mamwe ma dominant alleles anowanzo vhara mhedzisiro yemamwe ma alleles (recessive). Semuenzaniso, kana paine ruvara rwemaziso, allele yemaziso ebrown ndiyo inotonga pane allele yemaziso ebhuruu. Saka, munhu ane genotype ine allele imwe yemaziso ebrown uye allele imwe yemaziso ebhuruu ane phenotype yemaziso ebrown.
Simba rezvakatipoteredza paKuratidzwa kweGenotype
Pamusoro pezvinhu zvemajini, nharaunda ine basa guru mukuona phenotype. Kuonekwa kwegenotype kunogona kuchinjwa nezvinhu zvenharaunda zvakaita sekudya, mamiriro ekunze, nezvimwewo. Muenzaniso wekare wekudyidzana pakati pegenotype nenzvimbo ndeye tsuro yeHimalaya. Tsuro iyi ine genotype yemvere nhema, asi mvere nhema dzinongoratidzwa chete panhengo dzemuviri dzinotonhorera dzakadai kwenzeve, mhino, nemuswe. Panhengo dzemuviri dzinodziya, mvere dzinoramba dziri chena.
Zvinhu zvepfungwa nemagariro evanhu zvinogonawo kukanganisa maitiro evanhu. Marudzi emuviri anogona kupa hwaro hwehunyanzvi hwepfungwa, asi dzidzo nezviitiko zvehupenyu zvinoitawo basa guru mukuumba hunyanzvi ihwohwo.
Epigenetics: Kubatana Kuripo Pakati Pemajini Nezvakatipoteredza
Epigenetics inzvimbo yekudzidza inoongorora shanduko mukugadzirwa kwemajini pasina kuchinja DNA sequence pachayo. Epigenetic phenomena inogona kutsanangura kuti nharaunda inogona sei kukanganisa genotype uye kukonzera shanduko mu phenotype. Mienzaniso ye epigenetic mechanisms inosanganisira DNA methylation uye histone modifications, izvo zvinogona kumutsa kana kudzima majini chaiwo.
Kuchinja uku kwe epigenetic kunogona kuva kwenguva pfupi kana, mune dzimwe nguva, kunogona kupfuudzwa kuchizvarwa chinotevera. Izvi zvinotsanangura dzimwe nyaya apo zvakaitika kuvabereki muhupenyu zvinogona kukanganisa majini uye phenotype yevana vavo.
Mienzaniso yeMajini uye Hunhu Hwakagara Hwako Muvanhu
1. Ruvara rwebvudzi: Muvanhu, ruvara rwebvudzi rudzi rwebvudzi runokanganiswa zvakanyanya ne genotype. Majini eMelanocyte uye kusiyana kwawo kunosarudza kana munhu achava nebvudzi dema, brown, blonde, kana dzvuku.
2. Rudzi rweRopa: Rudzi rweropa remunhu runowanikwa nemarudzi matatu eallele, anoti A, B, naO. Musanganiswa wemarudzi aya unoratidza rudzi rweropa remunhu (A, B, AB, kana O).
3. Zvirwere zveMajini: Zvimwe zvirwere, zvakaita se cystic fibrosis kana sickle cell anemia, zvinokonzerwa nemarudzi chaiwo ezvirwere zvinobva kuvabereki. Zvirwere izvi zvinowanzokonzerwa ne recessive alleles.
Zvinokonzera Tsvagiridzo neTekinoroji
Kunzwisisa hukama huripo pakati pemajini ne phenotype kune zvakunoreva muminda yakaita semishonga, kurima, uye forensics. Mukurapa, kunzwisisa uku kunogona kubatsira mukugadzirwa kwemishonga yemajini inotarisa majini anokonzera zvirwere. Mukurima, majini ezvirimwa anogona kuchinjwa kuti awedzere kusimba kwezvirwere uye kuwedzera goho rezvirimwa.
Nekufambira mberi mune matekinoroji ezvemajini, akadai seCRISPR uye kutevedzana kwemajini, ikozvino tinogona kugadzira uye kugadzirisa majini nemazvo. Izvi zvinovhura mikana yekurapa kwakagadzirirwa majini ega ega uye zvinotungamira mukuvandudzwa kwenzira itsva dzekuvandudza hupenyu.
Mhedziso
Genotype ndiyo hwaro hwemajini hunosarudza hunhu hwechisikwa. Zvisinei, kuratidzwa chaiko kwegenotype muchimiro che phenotype kunokanganiswa nezvinhu zvakasiyana-siyana, kusanganisira kudyidzana kwezvakatipoteredza uye epigenetic. Kunzwisisa hukama hwakaoma pakati pe genotype ne phenotype kunopa ruzivo rwakakosha rune zvarunoreva muminda yakasiyana-siyana yesainzi uye mashandisirwo anoitwa.
Kudzidza nezve genotype uye hunhu huri kuramba huchichinja, zvichiwedzera ruzivo rwedu rwebiology uye zvichigadzira nzira yekuvandudza zvinhu zvitsva muminda yakasiyana-siyana. Saka, simba re genotype pahunhu harisi dzidziso chete, asi ipfungwa inotungamira pakunzwisisa nekusimudzira hupenyu hwevanhu nehupenyu hwese.
