Idzidziso yeGenerational Twinning
Chimwe chinhu chinowanzofungidzirwa pamusoro pemapatya nemawanda ndezvekuti mapatya anosvetuka chizvarwa. Vamwe vanhu vanofunga kuti hazvigoneki kuti mapatya achave nemapatya, asi angangodaro ave nemapatya vazukuru. Pane chikonzero chipi nechipi chesayenzi chekutenda uku?
Icho Chirongwa Chinokwana Here?
Mashoko aya anobva pakufungidzira kuti twinning is genetic uye inomhanya mumhuri.
Zvisinei, kana izvozvo zvaive zvechokwadi-kana paine mapaini maviri -mapatya acho aizoitika nehuwandu hwehuwandu hwemhuri iyo inotakura geni. Asi, pane zviitiko zvishomanana zvemhuri dzine mapatya mumarudzi ose emadzinza avo. Izvo zvipingamupinyi zvingava chikonzero nei vamwe vachiratidza "svetuka chizvarwa" nheyo.
Imwe twinning inogona kunzi inonzi genetics. Kunyange zvazvo pasina technically twine geni, kune chibereko chinokonzera kuti vamwe vakadzi vatarise kubata mapatya. Kuwedzera mafungiro, chido chekuti mukadzi asunungure maawa anopfuura makumi maviri pakuenda kumwedzi, angangodaro ane maitiro. Kana mazai maviri kana kupfuura akabatanidzwa, dizygotic (fraternal) twinning inogona kuitika. Zvisinei, monozygotic (yakafanana) mapatya anofungidzirwa kuti haana kumira; hapana ruzivo rwemagetsi rwakatsvaga runowedzera kuenzana kwakafanana .
Genetics yeHyperovulation
Kusvika ikozvino, zvidzidzo zvemajini zvakasiyana siyana zvakaratidza migumisiro inopesana sekuziva kuti inokonzera kukanganisa kana kuwedzera mukana wekuva nemapatya ehama.
Kukurukurirana chero kupi zvako kwegene kunokonzera kukanganisa kunongokanganisa chete. Neyo mahara, apa ndiyo nzira iyo mageneti aizoita.
Kana chikonzero chekunamatira chichienderana nehuwandu hwehuwandu, hupenyu hweamai chete hunozoita kuti mukana wekuti ave nemapatya . Basa rababa harina basa kune chizvarwa chezvino.
Kana hama ichitaura kuti "mapatya anomhanyira kumai vako," mukadzi angangodaro ave nemapatya, asi kwete kana "mapatya achimhanya pababa." Izvi ndezvokwadi kune chizvarwa ichocho, sezvo baba vaine genetics vachaita kuti mukana wevana vake vave nemapatya.
Kana iyo geni yaiva yakasimba, mukadzi aingofanira kunge ane mubereki mumwe chete achimupa jeni kuitira kuti ave nehuwandu. Zvinhu zvinowedzera zvakaoma kana geni iri recessive uye mukadzi aizoda kuwana mazana ejini kubva kuvabereki vose kuitira kuti ataure.
Mapatya Achikwira Chizvarwa
Vana vanogamuchira majini kubva kuvabereki vose, uye gene remagariro ehuwandu hwemhuka inogona kupfuudzwa kana amai kana baba. Apo amai vari kuratidza jeni ne hyperovulating, baba vacho vaizova mutakuri wekunze wejeni.
Mwanasikana wemurume nemudzimai apo baba kana amai vari mutakuri wehuwandu hwemajeni hungave huri nyore kuva nemapatya. Mwanakomana wemurume nomudzimai haaiti, kunyange zvazvo angave ari mutakuri wemagenha uye mwanasikana wake angangodaro ave nemapatya. Kana iyi geni iripo uye vaviri vacho vakanga vasina mwanasikana, vana vavo vaisazove nemapatya, asi vanzukuru vavo vaizove, uye chiitiko chacho chikazopfuura chizvarwa.
Muenzaniso
Ngatitarisei muenzaniso wemhuri kuti tinzwisise izvi zvakare. Mumuenzaniso uyu, geni rinonyanya uye rinoratidzwa nevakadzi kunyange kana rakagara nhaka kubva kumubereki mumwe chete.
- Chizvarwa Chokutanga (Mapatya): Adhamu naEvha. Ngatitii Evha ane geni rekutsvaga. Vane vana vatanhatu. Vaviri vavo ndevakomana vakomana vaviri, Jesse naJames.
- Chizvarwa Chechipiri (Hapana Mababa): Jesse naJakobho vanokura. Mumwe nomumwe anobereka vana vatatu, asi hapana mapatya. Kunyange zvazvo vakatakura geni rekutsvaira, havaiti. Nokudaro havatungamiri kuti zvingaitika kuti vavakidzani vavo vachaberekera mapatya.
- Chizvarwa Chechitatu (Twins): Vana vaJese; James 'vana. Ava ndivo vazukuru vaAdhamu naEvha. Mwanasikana wekupedzisira waJese, ngatimufonese Madonna, anoberekera mukoma wemadzimai mapatya, Thelma naLouise. Mwanasikana wekupedzisira waJakobho, Beyonce, anoberekera mukomana mukomana / mapatya mapatya, Ruka naLeia. Jesse naJakobho vangangodaro vakapfuudza chirwere chekushaya ropa kune vanasikana vavo.
- Chizvarwa Chechina (?): Unofunga kuti chii chichaitika? Mukadzi wechikadzi angave ane mapatya. Kana kuti vangasadaro. Mukadzi wechidiki haabatsiri mukana wekuti mudiwa wake aite mapatya. Asi vanogona kuva nemapatya kana kuwanda kwezvikonzero zvakasiyana-siyana, uye vanogona kuderera kupfuudza chirwere che hyperovulation kumarudzi anotevera.
Kubva pamuenzaniso uyu, unogona kuona kuti nei zvichizoonekwa kuti mapatya anokamba chizvarwa. Asi haisi mutemo wakaoma uye unokurumidza. Nezvimwe zvinhu zvakawanda zvinoita kuti twinning , inoretical hyperovulation geni ingangova chinhu chimwe chinokanganisa nzira.
Shoko Rinobva Kunyanya
Kusvikira geni rekusvudza rinozivikanwa, kukurukurirana uku kungongoita basa rinonakidza muku kunzwisisa genetics. Sezvo vakawanda vakaroorana vanoshandisa mishonga inobatsira kubereka uye teknolojia, musoro wacho unowedzera kuwedzera. Iwe unogona kunge uri pamusana pokusava nehanya paunokurukura izvi kune mhuri semarapirwo ekuberekwa angangodaro akaita basa mukurwisa uye kuzvarwa kwamababa.
> Kwakabva:
> Mikana Yokuti Kuva Nemapatya Mazvitsva Here? Genetics Home References, US National Library of Medicine. https://ghr.nlm.nih.gov/primer/traits/twins.