Kirish, tirik va jonsiz tabiatning o’xshashligi va farqlari. Ismingiz

Genetika- II. Ismingiz…………………
1.Letal genlar bu… genlar?...................................................................................................................................................
2.Polimer ta’sir organizmlarning qaysi belgilarida uchraydi?..............................................................................................
3.Aller genlar ….belgilarda bo’ladi?.....................................................................................................................................
4.Ajralishning qaysi biri dominantlikning oraliq xarakterga ega?........................................................................................
5.Ayrim jinsli organizmlarda jinslarni toping?.....................................................................................................................
6.Drozofilla meva pashshasining nasl berish vaqtini aniqlang?...........................................................................................
7.Odam tana hujayralarida genlarning nechata birikish guruhi mavjud?.............................................................................
8.Mendelning uchinchi qonunini aniqlang?.........................................................................................................................
9.Tahliliy chatishtirishni qaysi olim ishlab chiqqan?............................................................................................................
10.Suv yonog’ining suv ostidagi(1) va suv ustidagi (2) barglarining shakli qanday bo’lishini toping?...................................................................................................................................................................................
11.Genotipda aller bo’lmagan genlarning o’zaro ta’siri natijasida organizmda yangi belgilarni rivojlanishiga olib kelishi genlarning …ta’siri deb ataladi?................................................................................................................................
12.Odamning jinsiy hujayrasida nechata autasoma xramasomalar bo’ladi?........................................................................
13.Miqdoriy belgilarning rivojlanish darajasi qaysi genlar soniga bog’liq?.........................................................................
14.Ingibitor deb nomlangan genning bo’lishi genlarni o’zaro ta’sirining qaysi birida uchraydi?........................................
15.Qaysi holatda F₂ genotip va fenotip bo’yicha ajralish 1:2:1 nisbatda bo’ladi?...............................................................
16.Albinizm bu …kasalligi?................................................................................................................................................
17.Fenotipda bir dominat guruhining aller bo’lmagan ikkinchi dominatlik gendan ustunlik qilishi…deb ataladi?..................................................................................................................................................................................
18.Komplementarlik hodisasida F₂ da genotip bo’yicha qanday ajralish namayon bo’lishi mumkin?................................
19.Sun’iy yo’l bilan hosil qilingan mutatsiyalar…ichidagi genetik xilma-xillikni oshirishdi va shu yo’l bilan seliksionerga yordamchi material beradi?.............................................................................................................................
20.Retsessiv holda irsiylanadigan kasalliklarni belgilang?...................................................................................................
21.Dastlab irsiy o’zgarishlar tezligi birdaniga oshirish….ta’sirida amalga oshirilgan?.......................................................
22.Nilufarning suv ostidagi bargi lentasimon, suv ostidagi-vorovkasimon bo’lishi qanday o’zgaruvchanlikka misol bo’ladi?.................................................................................................................................................................................
24.Xramasoma kasalligini aniqlang?...................................................................................................................................
25.Drozofilla pashshasining genetik tadqiqotlar uchun qaulay bo’lgan belgisini aniqlang?................................................
27.Qushlarning qaysi belgisida oraliq irsiylanish kuzatiladi?...............................................................................................
29.Fenotipni belgilovchi biokimyoviy belgi berilgan javobni aniqlang?.............................................................................
31.Geterozigota organizmlarni chatishtirish natijasida olingan avlodlarning ma’lum qismini dominant,boshqa qismi esa retsessiv belgilarni namoyon qilish jarayoniga….deb ataladi?.............................................................................................
32.Kleynfelter sindromi o’gil bolaning somatik hujayralarida nechta autasoma xramasoma bo’ladi?................................
33…..fikricha irsiy omillar,duragaylar hosil bo’lishida ajralib ketmaydi,balki o’zgarmagan holda saqlanadi?..................
34.Qaysi hodisada xramasoma to’plamining karraga ortishi kuzatiladi?.............................................................................
35.Erkak va urg’ochi organizmlarda bir-biridan farq qiladigan xramasomalar qanday nomlanadi?....................................
36.Xo’rozlarda toj shakllarining irsiylanishi genlarning qaysi ta’sirida kiradi?...................................................................
37.Qaysi kasallik faqat gomozigota holatda namoyon bo’ladi?...........................................................................................
38.Ikki juft belgisi bo’yicha gomozigota organism genotipini belgilang?............................................................................
39.Qaysi mutatsiyalardan madaniy o’simli8klarning yangi navlarini yaratishda keng foydalaniladi?................................
40.Poliplodiya hodisasi asosan qaysi organizmlarda kuzatiladi?..........................................................................................
41.Erkaklarning somatik hujayralarida nechta jinsiy xramasoma bo’ladi?..........................................................................
42.Oraliq irsiylanishning 2 –avlodda fenotip va genotipik sinflarni o’zaro nisbati qanday bo’ladi?...................................
43.Biokimyoviy metod yordamida qaysi kasalliklarning kelib chiqish sabablari o’rganiladi?............................................
44.Bug’doy doning rangi genlarning qaysi ta’sirida irsiylanadi?.........................................................................................