B\u00e0i 3 (trang 107 SGK Sinh h\u1ecdc 12):\u00a0Hai lo\u00e0i sinh v\u1eadt s\u1ed1ng \u1edf c\u00e1c khu v\u1ef1c \u0111\u1ecba l\u00ed kh\u00e1c xa nhau (2 ch\u00e2u l\u1ee5c kh\u00e1c nhau) c\u00f3 nhi\u1ec1u \u0111\u1eb7c \u0111i\u1ec3m gi\u1ed1ng nhau. C\u00e1ch gi\u1ea3i th\u00edch n\u00e0o d\u01b0\u1edbi \u0111\u00e2y v\u1ec1 s\u1ef1 gi\u1ed1ng nhau gi\u1eefa hai lo\u00e0i l\u00e0 h\u1ee3p l\u00ed h\u01a1n c\u1ea3?<\/strong><\/p>\na) Hai ch\u00e2u l\u1ee5c n\u00e0y trong qu\u00e1 kh\u1ee9 \u0111\u00e3 c\u00f3 l\u00fac g\u1eafn li\u1ec1n v\u1edbi nhau.<\/p>\n
b) \u0110i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng \u1edf hai khu v\u1ef1c gi\u1ed1ng nhau n\u00ean ph\u00e1t sinh \u0111\u1ed9t bi\u1ebfn gi\u1ed1ng nhau.<\/p>\n
c) \u0110i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng \u1edf hai khu v\u1ef1c gi\u1ed1ng nhau n\u00ean CLTN ch\u1ecdn l\u1ecdc c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m th\u00edch nghi gi\u1ed1ng nhau.<\/p>\n
d) C\u1ea3 b v\u00e0 c.<\/p>\n
L\u1eddi gi\u1ea3i:<\/b><\/p>\n
\u0110\u00e1p \u00e1n: c.<\/p>\n
B\u00e0i 4 (trang 107 SGK Sinh h\u1ecdc 12):\u00a0T\u1ea1i sao nh\u1eefng c\u01a1 quan tho\u00e1i ho\u00e1 kh\u00f4ng c\u00f2n gi\u1eef ch\u1ee9c n\u0103ng g\u00ec l\u1ea1i v\u1eabn \u0111\u01b0\u1ee3c di truy\u1ec1n t\u1eeb \u0111\u1eddi n\u00e0y sang \u0111\u1eddi kh\u00e1c m\u00e0 kh\u00f4ng b\u1ecb CLTN lo\u1ea1i b\u1ecf?<\/strong><\/p>\nL\u1eddi gi\u1ea3i:<\/b><\/p>\n
C\u00e1c gen quy \u0111\u1ecbnh c\u01a1 quan tho\u00e1i ho\u00e1 kh\u00f4ng b\u1ecb CLTN \u0111\u00e0o th\u1ea3i v\u00ec nh\u1eefng c\u01a1 quan n\u00e0y th\u01b0\u1eddng kh\u00f4ng g\u00e2y h\u1ea1i t\u1edbi c\u01a1 th\u1ec3 sinh v\u1eadt. Nh\u1eefng gen n\u00e0y ch\u1ec9 c\u00f3 th\u1ec3 b\u1ecb lo\u1ea1i kh\u1ecfi qu\u00e2\u0300n th\u00ea\u0309 b\u01a1\u0309i ca\u0301c y\u00ea\u0301u t\u00f4\u0301 ng\u00e2\u0303u nhi\u00ean, co\u0301 th\u00ea\u0309 la\u0300 vi\u0300 th\u01a1\u0300i gian ti\u00ea\u0301n hoa\u0301 co\u0300n ch\u01b0a \u0111\u1ee7 d\u00e0i \u0111\u1ec3 c\u00e1c y\u1ebfu t\u1ed1 ng\u1eabu nhi\u00ean lo\u1ea1i b\u1ecf c\u00e1c gen n\u00e0y.<\/p>\n
\n
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<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
B\u00e0i 1 (trang 107 SGK Sinh h\u1ecdc 12):\u00a0T\u1ea1i sao \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ed1i quan h\u1ec7 h\u1ecd h\u00e0ng gi\u1eefa c\u00e1c lo\u00e0i v\u1ec1 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m h\u00ecnh th\u00e1i th\u00ec ng\u01b0\u1eddi ta l\u1ea1i hay s\u1eed d\u1ee5ng c\u00e1c c\u01a1 quan tho\u00e1i ho\u00e1? L\u1eddi gi\u1ea3i: S\u1edf d\u0129 c\u01a1 quan tho\u00e1i ho\u00e1 hay \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 b\u1eb1ng ch\u1ee9ng n\u00f3i l\u00ean […]<\/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
Ph\u1ea7n S\u00e1u - Ch\u01b0\u01a1ng 1 - B\u00e0i 24: C\u00e1c b\u1eb1ng ch\u1ee9ng ti\u1ebfn h\u00f3a<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lop12.edu.vn\/phan-sau-chuong-1-bai-24-cac-bang-chung-tien-hoa\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ph\u1ea7n S\u00e1u - Ch\u01b0\u01a1ng 1 - B\u00e0i 24: C\u00e1c b\u1eb1ng ch\u1ee9ng ti\u1ebfn h\u00f3a\" \/>\n<meta property=\"og:description\" content=\"B\u00e0i 1 (trang 107 SGK Sinh h\u1ecdc 12):\u00a0T\u1ea1i sao \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ed1i quan h\u1ec7 h\u1ecd h\u00e0ng gi\u1eefa c\u00e1c lo\u00e0i v\u1ec1 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m h\u00ecnh th\u00e1i th\u00ec ng\u01b0\u1eddi ta l\u1ea1i hay s\u1eed d\u1ee5ng c\u00e1c c\u01a1 quan tho\u00e1i ho\u00e1? 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