B\u00e0i 2 (trang 41 SGK Sinh h\u1ecdc 12):\u00a0N\u00eau c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ea7n c\u00f3 \u0111\u1ec3 khi lai c\u00e1c c\u00e1 th\u1ec3 kh\u00e1c nhau v\u1ec1 hai t\u00ednh tr\u1ea1ng ta thu \u0111\u01b0\u1ee3c \u0111\u1eddi con c\u00f3 t\u1ec9 l\u1ec7 ph\u00e2n li ki\u1ec3u h\u00ecnh x\u1ea5p x\u1ec9 :9 : 3: 3: 1.<\/strong><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
\u0110i\u1ec1u ki\u1ec7n c\u1ea7n \u0111\u1ec3 cho t\u1ec9 l\u1ec7 ph\u00e2n li ki\u1ec3u h\u00ecnh 9 : 3 : 3 : 1 l\u00e0:<\/p>\n
– B\u1ed1 m\u1eb9 \u0111em lai ph\u1ea3i d\u1ecb h\u1ee3p v\u1ec1 2 c\u1eb7p gen.<\/p>\n
– C\u00f3 hi\u1ec7n t\u01b0\u1ee3ng tr\u1ed9i l\u1eb7n ho\u00e0n to\u00e0n.<\/p>\n
– S\u1ed1 l\u01b0\u1ee3ng c\u00e1 th\u1ec3 con lai ph\u1ea3i \u0111\u1ee7 l\u1edbn.<\/p>\n
– C\u00e1c c\u00e1 th\u1ec3 c\u00f3 ki\u1ec3u gen kh\u00e1c nhau ph\u1ea3i c\u00f3 s\u1ee9c s\u1ed1ng nh\u01b0 nhau.<\/p>\n
– Qu\u00e1 tr\u00ecnh gi\u1ea3m ph\u00e2n v\u00e0 th\u1ee5 tinh di\u1ec5n ra b\u00ecnh th\u01b0\u1eddng.<\/p>\n
B\u00e0i 3 (trang 41 SGK Sinh h\u1ecdc 12):\u00a0L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c hai gen n\u00e0o \u0111\u00f3 n\u1eb1m tr\u00ean hai NST t\u01b0\u01a1ng \u0111\u1ed3ng kh\u00e1c nhau n\u1ebfu ch\u1ec9 d\u1ef1a tr\u00ean k\u1ebft qu\u1ea3 c\u1ee7a c\u00e1c ph\u00e9p lai?<\/strong><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
N\u1ebfu ch\u1ec9 d\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 c\u1ee7a ph\u00e9p lai th\u00ec:<\/p>\n
– K\u1ebft qu\u1ea3 c\u1ee7a ph\u00e9p lai ph\u00e2n t\u00edch: n\u1ebfu t\u1ec9 l\u1ec7 ki\u1ec3u h\u00ecnh \u1edf lai ph\u00e2n t\u00edch l\u00e0 1 : 1 : 1 : 1 th\u00ec 2 gen \u0111\u00f3 n\u1eb1m tr\u00ean 2 NST t\u01b0\u01a1ng \u0111\u1ed3ng kh\u00e1c nhau.<\/p>\n
– K\u1ebft qu\u1ea3 c\u1ee7a ki\u1ec3u h\u00ecnh \u1edf F2<\/sub>: n\u1ebfu t\u1ec9 l\u1ec7 ki\u1ec3u h\u00ecnh \u1edf F2<\/sub>\u00a0l\u00e0 9 : 3 : 3 : 1 th\u00ec 2 gen \u0111\u00f3 n\u1eb1m tr\u00ean 2 NST.<\/p>\nB\u00e0i 4 (trang 41 SGK Sinh h\u1ecdc 12):\u00a0Gi\u1ea3i th\u00edch t\u1ea1i sao l\u1ea1i kh\u00f4ng th\u1ec3 t\u00ecm \u0111\u01b0\u1ee3c 2 ng\u01b0\u1eddi c\u00f3 ki\u1ec3u gen gi\u1ed1ng h\u1ec7t nhau tr\u00ean Tr\u00e1i \u0110\u1ea5t, ngo\u1ea1i tr\u1eeb tr\u01b0\u1eddng h\u1ee3p sinh \u0111\u00f4i c\u00f9ng tr\u1ee9ng.<\/strong><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
Tr\u00ean th\u1ef1c t\u1ebf kh\u00f4ng th\u1ec3 t\u00ecm \u0111\u01b0\u1ee3c 2 ng\u01b0\u1eddi c\u00f3 ki\u1ec3u gen gi\u1ed1ng h\u1ec7t nhau (tr\u1eeb tr\u01b0\u1eddng h\u1ee3p sinh \u0111\u00f4i c\u00f9ng tr\u1ee9ng) v\u00ec s\u1ed1 l\u01b0\u1ee3ng bi\u1ebfn d\u1ecb t\u1ed5 h\u1ee3p do m\u1ed9t c\u1eb7p b\u1ed1 m\u1eb9 c\u00f3 th\u1ec3 s\u1ea3n sinh ra l\u00e0 r\u1ea5t l\u1edbn (223<\/sup>\u00a0\u00d7 223<\/sup>\u00a0= 246<\/sup>\u00a0ki\u1ec3u h\u1ee3p t\u1eed kh\u00e1c nhau).<\/p>\n\n
\n
B\u00e0i 5 (trang 41 SGK Sinh h\u1ecdc 12):\u00a0H\u00e3y ch\u1ecdn ph\u01b0\u01a1ng \u00e1n tr\u1ea3 l\u1eddi \u0111\u00fang: Quy lu\u1eadt ph\u00e2n li \u0111\u1ed9c l\u1eadp th\u1ef1c ch\u1ea5t n\u00f3i v\u1ec1:<\/strong><\/p>\na) S\u1ef1 ph\u00e2n li \u0111\u1ed9c l\u1eadp c\u1ee7a c\u00e1c t\u00ednh tr\u1ea1ng.<\/p>\n
b) S\u1ef1 ph\u00e2n li ki\u1ec3u h\u00ecnh theo t\u1ec9 l\u1ec7 9: 3 : 3 : 1.<\/p>\n
c) S\u1ef1 t\u1ed5 h\u1ee3p c\u1ee7a c\u00e1c alen trong qu\u00e1 tr\u00ecnh th\u1ee5 tinh.<\/p>\n
d) S\u1ef1 ph\u00e2n li \u0111\u1ed9c l\u1eadp c\u1ee7a c\u00e1c alen trong qu\u00e1 tr\u00ecnh gi\u1ea3m ph\u00e2n.<\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
\u0110\u00e1p \u00e1n : d.<\/p>\n<\/div>\n<\/div>\n
<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
B\u00e0i 1 (trang 41 SGK Sinh h\u1ecdc 12):\u00a0N\u00eau \u0111i\u1ec1u ki\u1ec7n nghi\u1ec7m \u0111\u00fang cho quy lu\u1eadt ph\u00e2n li \u0111\u1ed9c l\u1eadp c\u1ee7a Men\u0111en. L\u1eddi gi\u1ea3i: \u0110i\u1ec1u ki\u1ec7n nghi\u1ec7m \u0111\u00fang cho quy lu\u1eadt ph\u00e2n li \u0111\u1ed9c l\u1eadp c\u1ee7a Men\u0111en l\u00e0: C\u00e1c c\u1eb7p alen quy \u0111\u1ecbnh c\u00e1c t\u00ednh tr\u1ea1ng kh\u00e1c nhau n\u1eb1m tr\u00ean c\u00e1c c\u1eb7p NST t\u01b0\u01a1ng \u0111\u1ed3ng kh\u00e1c […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1307],"tags":[1397,1398],"yoast_head":"\n
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L\u1eddi gi\u1ea3i: \u0110i\u1ec1u ki\u1ec7n nghi\u1ec7m \u0111\u00fang cho quy lu\u1eadt ph\u00e2n li \u0111\u1ed9c l\u1eadp c\u1ee7a Men\u0111en l\u00e0: C\u00e1c c\u1eb7p alen quy \u0111\u1ecbnh c\u00e1c t\u00ednh tr\u1ea1ng kh\u00e1c nhau n\u1eb1m tr\u00ean c\u00e1c c\u1eb7p NST t\u01b0\u01a1ng \u0111\u1ed3ng kh\u00e1c […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lop12.edu.vn\/phan-nam-chuong-2-bai-9-quy-luat-menden-quy-luat-phan-li-doc-lap\/\" \/>\n<meta property=\"og:site_name\" content=\"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12 l\u1edbn nh\u1ea5t t\u1ea1i Vi\u1ec7t Nam\" \/>\n<meta property=\"article:published_time\" content=\"2018-03-20T09:21:51+00:00\" \/>\n<meta name=\"author\" content=\"H\u00e0 Trang\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"H\u00e0 Trang\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/lop12.edu.vn\/phan-nam-chuong-2-bai-9-quy-luat-menden-quy-luat-phan-li-doc-lap\/\",\"url\":\"https:\/\/lop12.edu.vn\/phan-nam-chuong-2-bai-9-quy-luat-menden-quy-luat-phan-li-doc-lap\/\",\"name\":\"Ph\u1ea7n N\u0103m - Ch\u01b0\u01a1ng 2 - B\u00e0i 9: Quy lu\u1eadt Men\u0111en: Quy lu\u1eadt ph\u00e2n li \u0111\u1ed9c l\u1eadp\",\"isPartOf\":{\"@id\":\"https:\/\/lop12.edu.vn\/#website\"},\"datePublished\":\"2018-03-20T09:21:51+00:00\",\"dateModified\":\"2018-03-20T09:21:51+00:00\",\"author\":{\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45\"},\"breadcrumb\":{\"@id\":\"https:\/\/lop12.edu.vn\/phan-nam-chuong-2-bai-9-quy-luat-menden-quy-luat-phan-li-doc-lap\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/lop12.edu.vn\/phan-nam-chuong-2-bai-9-quy-luat-menden-quy-luat-phan-li-doc-lap\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/lop12.edu.vn\/phan-nam-chuong-2-bai-9-quy-luat-menden-quy-luat-phan-li-doc-lap\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/lop12.edu.vn\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Ph\u1ea7n N\u0103m – Ch\u01b0\u01a1ng 2 – B\u00e0i 9: Quy lu\u1eadt Men\u0111en: Quy lu\u1eadt ph\u00e2n li \u0111\u1ed9c l\u1eadp\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/lop12.edu.vn\/#website\",\"url\":\"https:\/\/lop12.edu.vn\/\",\"name\":\"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/lop12.edu.vn\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45\",\"name\":\"H\u00e0 Trang\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/545a8100db1147f314111301d261dc33?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/545a8100db1147f314111301d261dc33?s=96&d=mm&r=g\",\"caption\":\"H\u00e0 Trang\"},\"url\":\"https:\/\/lop12.edu.vn\/author\/trangvth2\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Ph\u1ea7n N\u0103m - Ch\u01b0\u01a1ng 2 - B\u00e0i 9: Quy lu\u1eadt Men\u0111en: Quy lu\u1eadt ph\u00e2n li \u0111\u1ed9c l\u1eadp","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/lop12.edu.vn\/phan-nam-chuong-2-bai-9-quy-luat-menden-quy-luat-phan-li-doc-lap\/","og_locale":"en_US","og_type":"article","og_title":"Ph\u1ea7n N\u0103m - Ch\u01b0\u01a1ng 2 - B\u00e0i 9: Quy lu\u1eadt Men\u0111en: Quy lu\u1eadt ph\u00e2n li \u0111\u1ed9c l\u1eadp","og_description":"B\u00e0i 1 (trang 41 SGK Sinh h\u1ecdc 12):\u00a0N\u00eau \u0111i\u1ec1u ki\u1ec7n nghi\u1ec7m \u0111\u00fang cho quy lu\u1eadt ph\u00e2n li \u0111\u1ed9c l\u1eadp c\u1ee7a Men\u0111en. 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