|
114
MAVZU: “HUJAYRA SIKLI” BOBI YUZASIDAN MASALA VA
MASHQLAR YECHISH
1. Bodringildizhujayrasida 14 tadanxromosomauchraydi. Uning a) murtagida; b)
tuxumhujayrasida; c) changdonasinmgvegetativhujayrasida; d) endosperm
hujayrasidanechtadanxromosomabo'ladi?
A) a-7; b-7; c-7; d-14 B) a-14; b-14; c-14; d-21
C) a-14; b-7; c-7; d-21 D) a-14; b-7; C-7; d-14
2.
Bug'doyo'simligitetraploidnaviningmikrosporadanvegetativhujayraninghosilbo'lishidap
rofaza (a), metafaza (b), anafaza (c) bosqichlaridagixromosoma (l) va DNK
molekulalari (2) sonito‘g‘rikeltirilganjavobniko'rsating.
A) l: a-14, b-14, c-28; 2: a-28, b-28, c-28
B) l: a-28, b-28, c-56; 2: a-56, b-56, c-56
C) l: a-7, b-7, c-14; 2-a-14,
b-14, c-14
D) l; a-28, b-28, c-28; 2: a-28, b-28, c-28
3. Olcha (a), turp (b), qalampir (c)
o'simliklariningbarghujayralarikariotipidaxromosomalarsoninechtagateng?
1) 48; 2) 32; 3) 18; 4) 16; 5) 32; 6) 24; 7) 46
A) a-5; b-з; c-1 B) a-2; b-4; c-7
C)a- 2;b-3;c-l D)a-4!b-3;c-l
4. Embrionalrivojalanishningmaydalanishbosqichidauchmartaekvatorialbo'lini-
shdanso‘ngblastomerlarsoninechtabo'ladi?
A) 8 B) 512
C)128 D) 32
5.
Sholio'simligihujayrasidaqalampiro'simligiganisbatanikkibarobarkamxromosomabo'lad
i.
Sholio'simligiildizininghujayrasidasodirbo'layotganmitozningtelofazabosqichiyakunida
hujayrayadrosidaxromosomalarsoniqanchabo'ladi?
A) 12 B) 48 C) 24 D) 22
6.
Embrionalrivojalanishningmaydalanishbosqichidaoltimartameridinalbo'lmishdanso'ng
blastomerlarsoninechtabo'ladi?
A) 64 B) 1024 C) 128
D)512
7.
Qalampiro'simligidameyozjarayonibuzilishinatijasidahujayradagibirinchijulixromosom
avaoltinchijuftxromosomalarajralmaybittaqutbgato'planishdi.
Shuhujayradanhosilbo'lganspermalarishtrokidaurug'langanmarkaziyhujay-
rasidaxromosomalarsoninechtadanbo'ladi?
A) 56 yoki 58 B) 71 yoki 73
C) 70 yoki 74 D) 46 yoki 50
8. Qaysijavobdasog'lomyigitningnervhujayrasida (a), jinsiyhujayrasida (b),
leykotsitlarida (c) autosomalarvajinsiyxromosomalarsonito'g'riko'rsatilgan?
A) a - 44, 2 b - 23,l; с- 23,2 '
B) a - 44, 2; b - 22,
l; с- 44,2
О a - 23, l; b - 46,2; с - 46,1
D) a - 23, l; b - 23,
l; с - 46,2
115
9. Urg'ochikaptarningsomatikhujayrasida 80 ta xromosomamavjud.
Erkakkaptarningbirlamchijinsiyhujayrasidagixromosomalarholatinianiqlang.
A) 78 ta autosoma, 2 juftjinsiyxromosoma
B) 39 juftautosoma, X va Y xromosoma
C) 39 juftautosoma, birjuft X xromosoma
D) 39 ta autosoma, birjuft X xromosoma
10. Sog'lomodamningsomatikhujayrasidamitozningprofaza (a), metafaza (b), anafaza
(c) bosqichlaridaxromosoma (l) va DNK (2) larsoninianiqlang.
A) l a-46, b-46, c-92; 2-a 92, b-92, c-92
B) l-a-23, b-23, c-23; 2-a-46, b-46, c-46
C) l a-46, b-46, c-46; 2-a 92, b-46, c-46
D) l-a-46, b-92, c-92; 2-a-46, b-92, c-92
11. Karamo'simligi diploid turidameyoz I
jarayonianormalkechishinatijasidabirjuftxromosomalarajralmayqutblarganotengtaqsim
landi. Hosilbo'lganikkalahujayradagixromosomalarto'plamisoninianiqlang.
A) 28 va 26 ta B) 19 va 17 ta
C) 10va8ta D) 18 va 19 ta
12. Lansetnikembrionidagiblastomerlar 128
tagavetishiuchunhujayralarnechamartameridinal (a) vaekvatorial (b) bo'linishkerak
А) а-3; b-4 В) а-4; b-ЗС) а-4; b-2 D) а-2; Ь-4
13. Bo’linishnatijasida8 ta blastomerhosilbo’ldi, keyingi 16, 32, 64 ta
blastomerningqandaybo’linishlardankeyinhosilbo’lishinijuftlabko’rsating.
A) meridianal - 16;ekvatorial - 32; meridianal - 64
B) ekvatorial - 16; meridianal - 32; ekvatorial - 64
C) meridianal 16; meridianal - 32; ekvatorial - 64
D) ekvatorial - 16; ekvatorial - 32; meridianal - 64
14. Olchaningquyidaberilganqismlaridaxromosomasoni a=16 ta, b=32 ta, c=48 ta
emas.
1) endosperm; 2) tuxumhujayra; 3) po’kak;
4) changdonasi; 5) changdon,' 6) urug’chi;
7) vegetativhujayra; 8) generativhujayra;
9) spermiy
A) a-1,3,4,5,6; b-1,2,3,4,7,8,9; c-2,3,5,6,7,8,9
B) a-1,3,6,10; b-1,2,3,7,8,9; c-2,10
C) a-1,3,4,6,10; b-1,2,4,5,7,8,9; c-2,3,5,10
D) a-1,3,5,6,10; b-1,2,4,7,8,9; c-2,10
15. Blastomerlari 32 tagayetganuysichqoniembrionidajamixromosomalarsoni 1280
tabo’lsa,urug’lantirishdaqatnashganspermatazoidda
nechtaxromosomabo’ladi?
A) 40 B) 20 C) 60 D) 16
16. Tog’olchamurtakxaltasidagihujayralardajamiqanchaxromosomabor?
A) 64 B) 16 C) 32 D) 8
17. Meyozbuzilishitufaylimakkajo’xorihujayrasidagi
ikkinchivabeshinchi
xromosomalarjuftitarqalmaybirqutbgao’tdi.
Hosilbo’lganshuspermiylarishtirokidaurug’langan
murtakdaxromosomalarnechtabo’ladi?
A) 18 yoki 22
B) 29 yoki 31
C) 19 yoki 21
D) 28 yoki 32
116
18. Blastomerlari 32 tagayetganuysichqoniembrionidajamixromosomalarsoni 1280 ta
bo’lsa.urug’lantirishdaqatnashganspermatazoiddaxromosomalarqandayholatdabo’ladi?
A) 19+Y В) 20+X С) 38+XX D) 20+Y
19. Qorakalamushningtuxumhujayrasidagiautosomaxromosomalarisoni 18
gatengbo’lsahamdaembrionalrivojlanishningmaydalanishbosqichidahosilbo’lganhujayr
alardajamixromosomalar 19456 tagayetganbo’lsa,
blastomerlarsoninechtaekanliginianiqlang.
A) 256 B) 512 C) 1024 D) 128
20. Lansetnikembrionidagiblastomerlar 8
tagayetishiuchunhujayralarnechamartameridianalvaekvatorialbo’linishkerak?
A) 4 va 2B) 2 va 1
C) 4 va 3D) 5 va 3
Do'stlaringiz bilan baham: |
