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

Meyoz. Ismingiz…………………
1.Meyoz bo’linish qanday organizmlarda kuzatiladi ?........................................................................................................
2.Jinsiy hujayralarning yetilishi ….. deyiladi ?...................................................................................................................
3.Meyozning birinchi bo’linish fazalari ichida qaysi biri eng murakkab va uzoq davom etadi?........................................
4.Xromosomalarning spirallanish darajasi eng yuqori ko’rsatkichga ega bo’lgan faza bu … ?...........................................
5.Ko’pincha interkinoz sodir bo’lmay ….. ga ulanib ketadi?.............................................................................................
6.Kanyungatsiyalangan xromosomal o’rtasidagi o’xshash qismlar , genlar almashinuvi qanday nomlanadi?................
7.Profaza ozirida ….. ?..........................................................................................................................................................
8.Qaysi bo’linish natijasida xromasolar sonining doimiyligi saqlanadi ?...........................................................................
9.Bo’linish urchug’i xromasomaning qaysi qismiga birikadi ?...........................................................................................
10.Xromasomalarning tarqalishi …. da turli xil variantlarda amalga oshadi ?................................................................
11.Meyoz oxirida nechta gaploid to’plamli yetuk jinsiy hujayralar ( gametalar ) hosil bo’ladi ?....................................
12.Meyoz natijasida irsiy axbarotning yangi to’plami hosil bolishiga sabab nima ?......................................................
13.Interkinoz davrida …. kuzatilmaydi ?...........................................................................................................................
14.Xromatidlarni ajralmagan holda qutblarga tomon harakatlanishi …… kuzatiladi?....................................................
15.Meyozning qaysi fazalarida xuddi mitozdagidek jaroyonlar kuzatiladi ?..................................................................
16.Yadro qobig’i meyozning qaysi fazasida hosil bo’ladi ?..............................................................................................
17.Odamda meyozning birinchi bo’linishidan so’ng spermatozoid yoki ovositga 3-ta xromasoma ota organizmdan o’tgan bo’lsa , ona organizmdan qancha xromasoma o’tgan bo’ladi?.......................................................
18.Odamning birlamchi jinsiy hujayralarida nechta xromosoma bo’ladi?...........................................................................
19.Meyoz bo’linish natijsida xromosomalar to’plami qanday o’zgaradi?...........................................................................
20.Konyugatsiya jarayoni meyozning qaysi fazasida amalga oshadi?.................................................................................
21.Odamning birlamchi jinsiy hujayralaridagi xromosomalarning nechtasi ota organizmiga tegishli?..............................
22.Xromosomalar soni ikki xissa kamaygan hujayralar qaysi fazada hosil bo’ladi?...........................................................
23.Profaza II va metafaza II da bo’linayotgan hujayralarning xromosoma to’plami qanday bo’ladi?.................................
24.Odamda meyozning birinchi bo’linishidan so’ng spermatosit va ovositlarda qanchadan xromosoma bo’ladi?.............
25.Krossingover hodisasi … da kuzatiladi?.........................................................................................................................
26.Zigota bu … ?..................................................................................................................................................................
27.Gulli o’simliklardagi qo’sh urug’lanish hodisasini kim aniqlagan?................................................................................
28.Gulli o’simliklarda erkak gametalar qayerda yetiladi?....................................................................................................
29.Profaza II va metafaza II mitozdan … bilan farq qiladi?................................................................................................
30.Chang donasi nechta hujayradan tuzilgan?......................................................................................................................
31.Urug’langan markaziy hujayradan nima rivojlanadi?......................................................................................................
32.Endospermning xromosoma to’plamini aniqlang?..........................................................................................................
33.Ko’pchilik hollarda bitta tuxum hujayrani nechta spermatozoid urug’lantiradi?............................................................
34.Murtak … dan rivojlanadi?..............................................................................................................................................
35.Spermiylarning xromosoma to’plamini aniqlang?...........................................................................................................
36.Xromatidlarning mustaqil xromosomaga aylanishi meyozning qaysi fazasida amalga oshadi?.....................................
37.Vegetativ hjayraning funksiyasi berilgan qatorni aniqlang?............................................................................................
38.Murtak xaltasida qanday hujayralar bo’ladi?...................................................................................................................
39.Chang donachasining generativ hujayrasi qayerda bo’ladi?............................................................................................
40.Gulli o’simliklarning qo’sh urug’lanish jarayonida nechta hujayra ishtirok etadi?.........................................................
41.Chang naychalaridan nechtasi tugunchagacha yetib boradi?...........................................................................................
42.Agar odamning, meyozning birinchi bo’linishidan so’ng spermasit va ovositga o’tgan xromsomalardan 12 tasi ota organizmiga taalluqli bo’lsa, nechtasi ona organizmiga tegishli bo’ladi?............................................................................
43.Agar tuxum hujayraga to’rta spermatozoid kirsa,ularning nechtasi nobud bo’ladi?.......................................................
44.Krossingover hodisasi … lar o’rtasida kuzatiladi?..........................................................................................................
45.Gamalogik xramasomalar bir-biridan ajralishi qaysi fazada boshlanib, qaysi fazada tugaydi va ular bir-biridan to’liq ajraladi?.................................................................................................................................................................................
46.Murtak qaysi hujayralarning qo’shilishidan hosil bo’ladi?..............................................................................................
47.Gulli o’simliklarning spermalari qaysi hujayradan hosil bo’ladi?...................................................................................
48.Quyidagilardan qaysi birining yadrosi diploid xramasoma to’plamiga ega?..................................................................
49.Qaysi bo’linish tufayli irsiy o’zgaruvchanlik kelib chiqadi?...........................................................................................
50.Meyoz natijasida irsiy axborotning yangi to’plami hosil bo’lishiga sabab nima hisoblanadi?.......................................
51.Qaysi jarayon natijasida hujayraning diploid to’plami tiklanadi?...................................................................................
52.1915-yil …?.....................................................................................................................................................................