A) 5,4,3,1,6 B) 5,2,4,1,3,6 C) 5,1,4,2,6,3 D) 5,2,1,6,4,3
68.Qaysi restriktaza (lar) faqat fosfodiefir bog’larni uzadi A) BamHI B) EcoRI C) HaeIII D) pBR-322
69.Qaysi restriktaza (lar) fosfodiefir va vodarod bog’larni uzadi A) BamHI, EcoRI B) EcoRI, HaeIII C) HaeIII, ligaza D) pBR-322, Ti
70.Litik jarayon bosqichlari ketma-ketligini aniqlang 1) profag ekssiziyasi 2) fag DNKsi replikatsiyasi 3) fag oqsil qobig’ining hosil bo’lishi 4) fagning bakteriya DNKsiga rekombinatsiyasi 5) fag DNKsi bakteriya hujayrasiga kirishi 6) virusning bakteriya hujayrasidan chiqib ketishi A) 5,2,3,6 B) 5,1,2,3,4 C) 4,5,1,6 D) 4,5,2,1,6
71.Lizogeniya jarayoni bosqichlari ketma-ketligini aniqlang 1) lizogen bakteriya hosil bo’lishi 2) fag DNKsi replikatsiyasi 3) fag oqsil qobig’ining hosil bo’lishi 4) fagning bakteriya DNKsiga rekombinatsiyasi 5) fag DNKsi bakteriya hujayrasiga kirishi 6) virusning bakteriya hujayrasidan chiqib ketishi A) 5,4,1 B) 5,2,3,6 C) 4,5,1,6 D) 4,2,1
72.Quyida keltirilgan DNK fragmenti ketma-ketligida Eco RI (a), HaeIII (b) restriktazalari tanib bog’lanadigan saytlar sonini ko’rsating 5’-TAGAATTCATGGCCGAATTCGAATTCCGGG-3’ 3’-ATCTTAAGTACCGGCTTAAGCTTAAGGCCC-5’ A) a-3 b-2 B) a-4 b-3 C) a-3 b-4 D) a-2 b-5
73.Quyida keltirilgan DNK fragmenti ketma-ketligida Eco RI (a), BamHI (b) restriktazalari tanib bog’lanadigan saytlar sonini ko’rsating 5’-GAATTCTATGGCCGGATCCGAATTCTAGGATCC-3’ 3’-CTTAAGATACCGGCCTAGGCTTAAGATCCTAGG-5’ A) a-3 b-3 B) a-2 b-3 C) a-3 b-4 D) a-3 b-5
74.Plazmid tarkibidagi t-DNK bo’lagi o’simliklarda qanday o’zgarishlarga olib keladi A) o’simlik tanasida shish hosil qiladi
