Geterozigotalik (Yun. Gete- ro… va zigota) \u2014 genotipa muayyan gen- ning turlicha allellariga ega bo’lgan organizmlar holati. Geterozigotatl or- ganizmlar genning har xil \u2014 A yoki a allellariga ega bo’lgan gametalarning qo’shilishidan hamda gomozigotali (q. Go- mozigotalik) organizmlar genotipidagi bir dominant (A-“a) yoki resessiv gen (a\u2014>A) mutasiyasi natijasida hosil bo’lishi mumkin. Mas, g’o’zaning hosil (simpodiya) shoxlari tipi bo’yicha al- ternativ (keskin farqlanuvchi) belgili (cheklanmagan \u2014 SS va cheklangan shoxli \u2014 ss) liniyalari chatishtirilganda Ss Ge- notipli (monogeterozigota) g’o’za hosil bo’ladi. Shu gen bo’yicha monogeterozigo- talik S\u2014”s yoki s\u2014>S ko’rinishida Vu- judga keluvchi mutasiya natijasida ham yuz berishi mumkin. Organizmlar mono-, Di – va poligete-rozigotali bo’ladi. Bir juft allelli organizmlar (AA) mono- geterozigotali, ikki juftligi (AA, Vv) digeterozigotali, uch juftligi esa (AA, Vv, SS) \u2014 Trigeterozigotali va uch juftdan oshiq allellari bo’lsa \u2014 po- ligeterozigotali deb ataladi. Ma’lum bir genning o’z alleli ustidan domi- nantligi to’liq bo’lmasa fenotip bo’yicha organizmning geterozigota ekanligini aniqlash oson, chunki genotipning Gete- rozigota (AA) holatida fenotipda na- zarda tutilgan belgining oraliq shaklda namoyon bo’lishi kuzatiladi. Bunday sig- nal (darak beruvchi) belgilar eksperi- mental mutagenez bo’yicha tadqiqotlarda mutasiyalarning birinchi avlod (M,)da yuz berishini hisobga olishda muhim ahamiyatga ega bo’lishi mumkin. G’o’zadagi barg plastinkasining shakli, o’simlik va tola ranglari va b. shunday belgi- lar hisoblanadi. Organizmdagi G. ko’p hollarda geterozista olib keladi. Abdurafi Ashatov.<\/p>\n","protected":false},"excerpt":{"rendered":"
Geterozigotalik (Yun. Gete- ro… va zigota) \u2014 genotipa muayyan gen- ning turlicha allellariga ega bo’lgan organizmlar holati. Geterozigotatl or- ganizmlar genning har xil \u2014 A yoki a allellariga ega bo’lgan … Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":99837,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[210],"tags":[],"class_list":["post-135151","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-g-harfi-2","entry"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"kr","enabled_languages":["uz","kr","ru"],"languages":{"uz":{"title":true,"content":true,"excerpt":false},"kr":{"title":false,"content":false,"excerpt":false},"ru":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/posts\/135151","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/comments?post=135151"}],"version-history":[{"count":1,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/posts\/135151\/revisions"}],"predecessor-version":[{"id":135167,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/posts\/135151\/revisions\/135167"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/media\/99837"}],"wp:attachment":[{"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/media?parent=135151"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/categories?post=135151"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/milliycha.uz\/kr\/wp-json\/wp\/v2\/tags?post=135151"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}