4
9. Urug„langan tuxum hujayra-zigotadan ___________________, urug„langan markaziy hujayradan
esa ______________________________________ rivojlanadi.
10. Hayvonlarda jinsiy hujayralarning hosil bo„lish jarayoni- __________________
__________________________________________________________deyiladi.
11.
Tuxum
hujayraning
urug„lanmasdan
rivojlanish
__________________________
________________________________________________________ deyiladi
12.Sun‟iy partenogenez yordamida erkak jinsli ipak qurtlarini yaratish
usulini ishlab chiqqan
___________________________________________________________
13. Ontogenez tushunchasi ____________________________________ tomonidan fanga kiritilgan
14. Genetikaga asos solgan olim _________________________________________ hisoblanadi.
15. Tirik organizmlarning hayoyiy faoliyati ritmik ravishda o„zgarishi,
evolutsiua natijasida
shakllanish ________________________________________________- deb ataladi.
16. Tashqi muhit omillari ta‟sirini o„zgarishiga qaramay, tirik organizmlar ichki muhitining nisbatan
doimiy saqlab turish xususiyati __________________________
____________________________________________________________________
17. Hayotiy jarajonlarning davom etishi noqulay bo„lgan muhit sharoitida organizm
________________________________________________________ holatiga o„tadi.
18. Gen mutatsiyalari natijasida ikkita emas, uchta yoki undan ortiq allellari paydo bo„lish hodisasi
______________ _________________________________________ deyiladi.
19. Avlodlarda belgilarning mustaqil ravishda irsiylanishi va
barcha belgilar uchun erkin
kombinatsiyalanishi barcha belgilar uchun xos emasligini drozofila pashshasida o„rgangan olim
_____________________________________________________
20. Hayvonlarda gametogenezning ko„payish davrida hujayralardagi xromosomalar to„plami
________________________________________________ holatda bo„ladi.
1-golozoy 2. murtak 3. 4.fototrof 5. fragmentatsiya 6. geterotroflar 7. binar 8. poliembrioniya 9. ftor
10. Gekkel 11. xemotrof 12. Mendel 13. bioritm 14. gametogenez 15. gomeostaz 16. endosperm 17.
partenogenez 18. anabioz 19. geterogamiya 20. ko„p allellik 21. Tomas Morgan 22. Diploid 23.
Astaurov 24-parazit. 25.-saprofit
To„g„ri javob: ________ Ball: ________ O„qituvchining imzosi: ______
