A) 16
B) 32 C).8 D) 64
hujayra yadrosida xromosomalar soni qancha bolishini aniqlang. a) barg ogizcha hujayralari; b) urug endospermi; c) birlamchi jinsiy hujayrasi; d) kollenxima hujayralari.
A) a-72, b-108, c-72, d-72
B) a-36, b-72, c-36, d-36
C) a-36, b-54, c-36, d-36
D) a-18, b-54, c-36, d-72
36. (v15-120-4) Sholi osimligi spermiylaridagi xromosomalar soni makkajoxori xromosomalarining n toplamidan 2 taga ortiq. Agar bir tup sholi osimligining 1 ta shingilida
- 27 ta don hosil bolsa, uruglangan tuxum hujayralarda jami xromosomalar soni qancha boladi?
A) 297 B) 594 C) 648 D) 972
37. (v15-120-7) Olchaning har bir mikrosporasida qancha xromosoma bor.
k A) 64 B) 32 C) 128 D) 16
38. (v15-123-6) Olcha murtak xaltasidagi hujayralarda jami qancha xromosoma bor?
A) 16 B) 64 C) 32 D) 128
39. (v15-123-12) Qalampirning diploid navi changdonidagi mikrosporalar soni uning somatik hujayrasi yadrosidagi xromosomalar sonidan 8 marta kop miqdorda yetildi deylik. Agar uruglantirish jarayonida faqat 192
ta spermiy ishtirok etgan bolsa, markaziy hujayrani uruglantirishda ishtirok etgan spermiylar necha foizni tashkil etadi.
A) 12,5 B) 75 C) 25 D) 67,5
40. (v15-130-23) Togolcha murtak xaltasidagi
tuxum va markaziy hujayralarda jami qancha xromosoma bor? *
A) 32 B) 24 C) 8 D) 16
41. (v15-131-25) Quyidagi berilgan fikrlardan togrilarni ajrating.
1) DNK reduplikatsiyasi mitoz interfazasida sodir boladi; 2) gulli osimiiklar mikrosporasi mitoz bolinishi natijasida hosil bolgan ikkala yangi hujayra diploid toplamga ega boladi;
3) gulli osimliklarda arxeosporadan hosil bolgan yirik hujayraning mitoz bolinishi natijasida hosil bolgan hujayralar diploid toplamda boladi; 4) gulli osimliklarda arxeosporadan hosil bolgan yirik hujayraning mitoz bolinishi natijasida hosil bolgan ^ hujayralar gaploid toplamda boladi.
A) 2, 4 B) 1, 3 C) 1,4 D) 2, 3
42. (v15-132-33) Qalampirning diploid navi a. changdonidagi mikrosporalar soni uning
somatik hujayrasi yadrosidagi xromosomalar sonidan 8 marta kop miqdorda yetildi deylik. Agar uruglantirish jarayonida faqat 192 ta n spermiy ishtirok etgan bolsa, tuxum hujayrani ^ uruglantirishda ishtirok etgan spermiylar necha foizni tashkil etadi?
A) 67,5 B) 75 C) 25 D) 12,5
43. (v15-133-7) Olcha murtak xaltasidagi markaziy h
D) 64
hujayra yadrosida xromosomalar soni qancha bolishini aniqlang. a) barg ogizcha hujayralari; b) urug endospermi; c) birlamchi jinsiy hujayrasi; d) kollenxima hujayralari.
A) a-72, b-108, c-72, d-72
B) a-36, b-72, c-36, d-36
C) a-36, b-54, c-36, d-36
D) a-18, b-54, c-36, d-72
36. (v15-120-4) Sholi osimligi spermiylaridagi xromosomalar soni makkajoxori xromosomalarining n toplamidan 2 taga ortiq. Agar bir tup sholi osimligining 1 ta shingilida
- 27 ta don hosil bolsa, uruglangan tuxum hujayralarda jami xromosomalar soni qancha boladi?
A) 297 B) 594 C) 648 D) 972
37. (v15-120-7) Olchaning har bir mikrosporasida qancha xromosoma bor.
k A) 64 B) 32 C) 128 D) 16
38. (v15-123-6) Olcha murtak xaltasidagi hujayralarda jami qancha xromosoma bor?
A) 16 B) 64 C) 32 D) 128
39. (v15-123-12) Qalampirning diploid navi changdonidagi mikrosporalar soni uning somatik hujayrasi yadrosidagi xromosomalar sonidan 8 marta kop miqdorda yetildi deylik. Agar uruglantirish jarayonida faqat 192
ta spermiy ishtirok etgan bolsa, markaziy hujayrani uruglantirishda ishtirok etgan spermiylar necha foizni tashkil etadi.
A) 12,5 B) 75 C) 25 D) 67,5
40. (v15-130-23) Togolcha murtak xaltasidagi
tuxum va markaziy hujayralarda jami qancha xromosoma bor? *
A) 32 B) 24 C) 8 D) 16
41. (v15-131-25) Quyidagi berilgan fikrlardan togrilarni ajrating.
1) DNK reduplikatsiyasi mitoz interfazasida sodir boladi; 2) gulli osimiiklar mikrosporasi mitoz bolinishi natijasida hosil bolgan ikkala yangi hujayra diploid toplamga ega boladi;
3) gulli osimliklarda arxeosporadan hosil bolgan yirik hujayraning mitoz bolinishi natijasida hosil bolgan hujayralar diploid toplamda boladi; 4) gulli osimliklarda arxeosporadan hosil bolgan yirik hujayraning mitoz bolinishi natijasida hosil bolgan ^ hujayralar gaploid toplamda boladi.
A) 2, 4 B) 1, 3 C) 1,4 D) 2, 3
42. (v15-132-33) Qalampirning diploid navi a. changdonidagi mikrosporalar soni uning
somatik hujayrasi yadrosidagi xromosomalar sonidan 8 marta kop miqdorda yetildi deylik. Agar uruglantirish jarayonida faqat 192 ta n spermiy ishtirok etgan bolsa, tuxum hujayrani ^ uruglantirishda ishtirok etgan spermiylar necha foizni tashkil etadi?
A) 67,5 B) 75 C) 25 D) 12,5
43. (v15-133-7) Olcha murtak xaltasidagi markaziy hujayrada jami qancha xromosoma bor?
A) 16 B)32 C)64 D)128
44. (v16-108-27) Agar osimlikda hosil bolgan mikrosporalarning 40% idan chang hosil bolib, changning 50% i uruglanishda qatnashgan bolsa hamda osimlikda 160 ta urug hosil