Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n Sinh<\/p>\n<\/div>\n
C\u00e2u 1:<\/strong>V\u00f9ng m\u00e3 h\u00f3a c\u1ee7a m\u1ed9t gen \u1edf sinh v\u1eadt nh\u00e2n s\u01a1 d\u00e0i 4080 A<\/p>\n . Tr\u00ean m\u1ea1ch 1 c\u1ee7a v\u00f9ng n\u00e0y c\u1ee7a gen, hi\u1ec7u s\u1ed1 t\u1ef7 k\u1ec7 ph\u1ea7n tr\u0103m gi\u1eefa Adenin v\u00e0 Timin b\u1eb1ng 20% s\u1ed1 nu c\u1ee7a m\u1ea1ch. \u1ede m\u1ea1ch 2 t\u01b0\u01a1ng \u1ee9ng, s\u1ed1 nu lo\u1ea1i A chi\u1ebfm 15% s\u1ed1 nu c\u1ee7a m\u1ea1ch v\u00e0 b\u1eb1ng m\u1ed9t n\u1eeda s\u1ed1 nu c\u1ee7a Guanin. Khi gen nh\u00e2n \u0111\u00f4i m\u1ed9t l\u1ea7n \u0111\u00e3 l\u00e0m \u0111\u1ee9t v\u00e0 h\u00ecnh th\u00e0nh bao nhi\u00eau li\u00ean k\u1ebft hi\u0111r\u00f4 guyawx 2 m\u1ea1ch c\u1ee7a gen?<\/p>\n A. 2998 v\u00e0 5998 B. 5998 v\u00e0 6000 C. 2998 v\u00e0 3000 D. 3000 v\u00e0 6000<\/p>\n C\u00e2u 2:<\/strong>Qu\u00e1 tr\u00ecnh t\u00e1i b\u1ea3n ADN g\u1ed3m c\u00e1c b\u01b0\u1edbc:<\/p>\n 1.T\u1ed5ng h\u1ee3p c\u00e1c m\u1ea1ch ADN m\u1edbi<\/p>\n 2. Hai ph\u00e2n t\u1eed AND con xo\u1eafn l\u1ea1i<\/p>\n 3. Th\u00e1o xo\u1eafn ph\u00e2n t\u1eed AND.<\/p>\n Tr\u00ecnh t\u1ef1 c\u00e1c b\u01b0\u1edbc trong qu\u00e1 tr\u00ecnh nh\u00e2n \u0111\u00f4i l\u00e0:<\/p>\n A.3, 2, 1 B. 2, 1, 3 C. 1, 2, 3 D. 3, 1, 2<\/p>\n C\u00e2u 3:<\/strong>Th\u00e0nh ph\u1ea7n n\u00e0o c\u1ee7a nucleotit c\u00f3 th\u1ec3 t\u00e1ch ra kh\u1ecfi chu\u1ed7i polinucleotit m\u00e0 kh\u00f4ng l\u00e0m \u0111\u1ee9t m\u1ea1ch.<\/p>\n A. \u0110\u01b0\u1eddng C<\/p>\n H<\/p>\n O<\/p>\n B. \u0110\u01b0\u1eddng C<\/p>\n H<\/p>\n O<\/p>\n C. Baz\u01a1 nit\u01a1 D. Axit ph\u00f4tphoric<\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n<\/p>\n T\u1ea5t c\u1ea3 n\u1ed9i dung b\u00e0i vi\u1ebft. C\u00e1c em h\u00e3y xem th\u00eam v\u00e0 t\u1ea3i file chi ti\u1ebft t\u1ea1i \u0111\u00e2y:<\/strong>Download<\/p>\n","protected":false},"excerpt":{"rendered":" Tr\u01b0\u1eddng THPT chuy\u00ean L\u00e0o Cai t\u1ed5 ch\u1ee9c thi th\u1eed THPT Qu\u1ed1c gia l\u1ea7n 1 n\u0103m 2016 cho c\u00e1c em h\u1ecdc sinh l\u1edbp 12, d\u01b0\u1edbi \u0111\u00e2y l\u00e0 \u0111\u1ec1 thi th\u1eed m\u00f4n Sinh g\u1ed3m c\u00f3 50 c\u00e2u c\u1ee5 th\u1ec3 nh\u01b0 sau: Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n Sinh C\u00e2u 1:V\u00f9ng m\u00e3 h\u00f3a c\u1ee7a m\u1ed9t […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[129],"tags":[],"yoast_head":"\n