{"id":4428,"date":"2009-12-23T20:45:10","date_gmt":"2009-12-23T20:45:10","guid":{"rendered":"https:\/\/chanhkien.org\/?p=4428"},"modified":"2012-05-28T08:32:59","modified_gmt":"2012-05-28T08:32:59","slug":"co-phai-benh-di-truyen-la-mot-bieu-hien-cua-nghiep-luc-truyen-tu-to-tien","status":"publish","type":"post","link":"https:\/\/chanhkien.org\/2009\/12\/co-phai-benh-di-truyen-la-mot-bieu-hien-cua-nghiep-luc-truyen-tu-to-tien.html","title":{"rendered":"C\u00f3 ph\u1ea3i b\u1ec7nh di truy\u1ec1n l\u00e0 m\u1ed9t bi\u1ec3u hi\u1ec7n c\u1ee7a nghi\u1ec7p l\u1ef1c truy\u1ec1n t\u1eeb t\u1ed5 ti\u00ean?"},"content":{"rendered":"<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-16803\" title=\"KhoaHocChanChinh\" src=\"http:\/\/chanhkien.org\/wp-content\/uploads\/2012\/01\/KhoaHocChanChinh.jpg\" alt=\"\" width=\"321\" height=\"444\" srcset=\"https:\/\/chanhkien.org\/wp-content\/uploads\/2012\/01\/KhoaHocChanChinh.jpg 321w, https:\/\/chanhkien.org\/wp-content\/uploads\/2012\/01\/KhoaHocChanChinh-216x300.jpg 216w\" sizes=\"(max-width: 321px) 100vw, 321px\" \/><\/p>\n<p><strong>[Chanhkien.org]<\/strong> Y h&#7885;c hi&#7879;n &#273;&#7841;i tin r&#7857;ng nh&#7919;ng &#273;&#7897;t bi&#7871;n di truy&#7873;n (&#273;&#7897;t bi&#7871;n Gen) l&agrave; nh&#7919;ng s&#7921; ki&#7879;n ng&#7851;u nhi&ecirc;n g&acirc;y ra b&#7903;i nh&#7919;ng &lsquo;sai s&oacute;t&rsquo; trong c&aacute;c nh&acirc;n c&#7911;a t&#7871; b&agrave;o hay b&#7883; nhi&#7877;m nh&#7919;ng &#273;&#7897;c t&#7889; nh&#432; ho&aacute; ch&#7845;t, ph&oacute;ng x&#7841;, v.v. m&agrave; nh&#7919;ng th&#7913; n&agrave;y &#273;&atilde; thay &#273;&#7893;i h&#7879; di truy&#7873;n trong ADN n&#7857;m trong nh&acirc;n t&#7871; b&agrave;o c&#7911;a ch&uacute;ng ta. V&igrave; ADN l&agrave; &lsquo;n&#7873;n m&oacute;ng c&#7911;a &#273;&#7901;i s&#7889;ng&rsquo; nh&#7919;ng &#273;&#7897;t bi&#7871;n thay &#273;&#7893;i ADN c&oacute; th&#7875; &#273;&#432;a &#273;&#7871;n nh&#7919;ng thi&#7871;u s&oacute;t di truy&#7873;n trong th&acirc;n th&#7875; con ng&#432;&#7901;i v&agrave; nh&#7919;ng b&#7879;nh t&#7853;t c&oacute; t&iacute;nh di truy&#7873;n.<\/p>\n<p>C&oacute; ch&#7915;ng 4,000 c&#259;n b&#7879;nh di truy&#7873;n &#273;&#432;&#7907;c bi&#7871;t &#273;&#7871;n (th&#7889;ng k&ecirc; t&#7915; Vi&#7879;n Y h&#7885;c Howard Hughes) m&agrave; n&oacute; di truy&#7873;n t&#7915; &#273;&#7901;i n&agrave;y sang &#273;&#7901;i kh&aacute;c. Nh&#7919;ng b&#7879;nh n&agrave;y l&agrave; t&#7915; nh&#7919;ng t&igrave;nh tr&#7841;ng nh&#7865; m&agrave; c&oacute; th&#7875; &#273;&#432;a &#273;&#7871;n t&#7853;t nguy&#7873;n, d&#7883; d&#7841;ng v&agrave; th&#7853;m ch&iacute; b&#7883; ch&#7871;t. B&#7845;t c&#7913; khi n&agrave;o t&ocirc;i th&#7845;y c&aacute;c tr&#7867; em b&#7883; nh&#7919;ng c&#259;n b&#7879;nh n&agrave;y, t&ocirc;i c&#7843;m th&#7845;y x&oacute;t th&#432;&#417;ng cho ch&uacute;ng. Tuy nhi&ecirc;n, t&ocirc;i c&#361;ng suy ngh&#297; &#273;&#7871;n nh&#7919;ng g&igrave; m&agrave; ch&uacute;ng v&agrave; t&#7893; ti&ecirc;n ch&uacute;ng &#273;&atilde; l&agrave;m trong c&aacute;c ki&#7871;p s&#7889;ng tr&#432;&#7899;c &#273;&acirc;y &#273;&atilde; &#273;em l&#7841;i nh&#7919;ng h&#7853;u qu&#7843; nghi&#7879;p l&#7921;c n&#7863;ng n&#7873; n&agrave;y.<\/p>\n<p>Trong quy&#7875;n <a class=\"lar-automated-link\" href=\"https:\/\/chanhkien.org\/chu-giai-tu-vung#chuyen_phap_luan\" 28722 rel=\"nofollow\" target=\"_blank\">Chuy&#7875;n Ph&aacute;p Lu&acirc;n<\/a>, &ocirc;ng L&yacute; H&#7891;ng Ch&iacute; n&oacute;i v&#7873; m&#7897;t lo&#7841;i nghi&#7879;p l&#7921;c &lsquo;<em>c&ograve;n n&#7919;a l&agrave; th&#7913; gi&#7889;ng nh&#432; c&aacute;i &#7889;ng d&#7851;n &#273;&#7871;n, lo&#7841;i n&agrave;y &iacute;t g&#7863;p, &#273;&#7873;u l&agrave; do t&#7893; ti&ecirc;n &#7903; tr&ecirc;n t&iacute;ch t&#7909; l&#7841;i; c&#361;ng c&oacute; t&igrave;nh hu&#7889;ng nh&#432; th&#7871;<\/em>&rsquo;. V&igrave; lo&#7841;i nghi&#7879;p l&#7921;c hi&#7871;m th&#7845;y n&agrave;y chuy&#7875;n &#273;&#7871;n b&#7857;ng &#273;&#432;&#7901;ng &#7889;ng qua nhi&#7873;u &#273;&#7901;i, &#273;i&#7873;u n&agrave;y c&oacute; th&#7875; l&agrave; nguy&ecirc;n nh&acirc;n ch&iacute;nh ch&#7881; khi n&agrave;o ch&uacute;ng bi&#7875;u hi&#7879;n nh&#432; l&agrave; m&#7897;t lo&#7841;i bi&#7871;n ch&#7913;ng di truy&#7873;n &#273;&#432;a &#273;&#7871;n nh&#7919;ng b&#7879;nh gia truy&#7873;n (m&agrave; c&#361;ng l&agrave; hi&#7871;m th&#7845;y). N&#7871;u nh&#432; v&#7853;y, th&igrave; nh&#7919;ng lo&#7841;i &#273;&#7897;t bi&#7871;n n&agrave;y th&#7853;t s&#7921; ng&#7851;u nhi&ecirc;n kh&ocirc;ng?<\/p>\n<p>Khoa h&#7885;c ng&agrave;y nay c&oacute; th&#7875; t&igrave;m th&#7845;y nh&#7919;ng lo&#7841;i &#273;&#7897;t bi&#7871;n n&agrave;y. B&aacute;o USA Today b&aacute;o r&#7857;ng c&oacute; h&#417;n 200,000 th&#7917; nghi&#7879;m th&#7921;c hi&#7879;n h&agrave;ng n&#259;m v&agrave; g&#7847;n nh&#432; 400 th&#7917; nghi&#7879;m v&#7873; c&aacute;c &#273;&#7897;t bi&#7871;n &#273;ang c&oacute; &#273;&#432;&#7907;c (th&#7917; nghi&#7879;m di truy&#7873;n mang &#273;&#7871;n nh&#7919;ng ch&#7885;n l&#7921;a &#273;au bu&#7891;n, 4\/23\/01). Hi&#7879;n nay con ng&#432;&#7901;i th&#7853;m ch&iacute; c&ograve;n bi&#7871;t &#273;&#432;&#7907;c r&#7857;ng h&#7885; c&oacute; th&#7875; s&#7869; mang b&#7879;nh di truy&#7873;n. Khoa h&#7885;c tin r&#7857;ng b&#7857;ng c&aacute;ch bi&#7871;t tr&#432;&#7899;c nh&#7919;ng &#273;&#7897;t bi&#7871;n n&agrave;y l&agrave; g&igrave; v&agrave; x&#7843;y ra &#7903; &#273;&acirc;u, h&#7885; c&oacute; th&#7875; ph&aacute;t minh ra c&aacute;ch ch&#7919;a tr&#7883; cho c&aacute;c b&#7879;nh n&agrave;y. R&#7845;t nhi&#7873;u ph&#432;&#417;ng ph&aacute;p tr&#7883; li&#7879;u v&agrave; thu&#7889;c men &#273;ang &#273;&#432;&#7907;c &#273;i&#7873;u ch&#7871; &#273;&#7875; &lsquo;tr&#7883; v&agrave; ng&#7915;a&rsquo; c&aacute;c b&#7879;nh n&agrave;y.<\/p>\n<p>Tuy nhi&ecirc;n, n&#7871;u ch&uacute;ng ta nh&igrave;n &#273;i&#7873;u n&agrave;y t&#7915; kh&iacute;a c&#7841;nh c&#7911;a b&agrave;i gi&#7843;ng c&#7911;a S&#432; ph&#7909; L&yacute;, ch&uacute;ng ta bi&#7871;t r&#7857;ng c&aacute;ch &lsquo;tr&#7883; v&agrave; ph&ograve;ng b&#7879;nh&rsquo; n&agrave;y l&agrave; qua tu luy&#7879;n v&#7873; &#273;&#7913;c h&#7841;nh v&agrave; kh&ocirc;ng c&ograve;n t&#7841;o ra nghi&#7879;p l&#7921;c cho c&aacute;c &#273;&#7901;i sau, &ldquo;<em>C&ograve;n m&#7897;t t&igrave;nh hu&#7889;ng: trong gia t&#7897;c v&agrave; t&#7915; t&#7893; ti&ecirc;n c&oacute; th&#7875; t&iacute;ch l&#7841;i [nh&#7919;ng th&#7913; &#7845;y]. Nh&#7919;ng ng&#432;&#7901;i gi&agrave; trong qu&aacute; kh&#7913; gi&#7843;ng c&acirc;u n&agrave;y: &lsquo;h&atilde;y t&iacute;ch &#273;&#7913;c h&atilde;y t&iacute;ch &#273;&#7913;c; t&#7893; ti&ecirc;n t&iacute;ch &#273;&#7913;c; ng&#432;&#7901;i kia th&#7845;t &#273;&#7913;c, t&#7893;n &#273;&#7913;c&rsquo;. Nh&#7919;ng c&acirc;u n&agrave;y gi&#7843;ng h&#7871;t s&#7913;c &#273;&uacute;ng<\/em>&rsquo;.<\/p>\n<p>Khoa h&#7885;c ng&agrave;y nay ch&#7881; c&oacute; th&#7875; nh&igrave;n th&#7845;y ADN &#7903; m&#7913;c ph&acirc;n t&#7917;. Theo S&#432; ph&#7909; L&yacute;, nghi&#7879;p hay &#273;&#7913;c, c&#7843; hai &#273;&#7873;u t&#7891;n t&#7841;i &#7903; d&#7841;ng v&#7853;t ch&#7845;t, t&#7891;n t&#7841;i &#7903; c&aacute;c t&#7847;ng r&#7845;t vi quan, v&#432;&#7907;t qua gi&#7899;i h&#7841;n c&#7911;a khoa h&#7885;c hi&#7879;n &#273;&#7841;i, m&agrave; ch&#7881; c&oacute; th&#7875; kh&aacute;m ph&aacute; &#273;&#432;&#7907;c v&#7853;t th&#7875; &#7903; t&#7847;ng neutrino. [Ghi ch&uacute;: &#273;&acirc;y l&agrave; s&#7921; hi&#7875;u bi&#7871;t c&#7911;a ng&#432;&#7901;i vi&#7871;t]. V&igrave; th&#7871;, n&#7871;u nghi&#7879;p l&#7921;c c&#7911;a t&#7893; ti&ecirc;n l&agrave; nguy&ecirc;n nh&acirc;n c&#7911;a nh&#7919;ng b&#7879;nh di truy&#7873;n, t&igrave;m c&aacute;ch ch&#7919;a tr&#7883; ch&uacute;ng &#7903; t&#7847;ng ph&acirc;n t&#7917; th&igrave; s&#7869; r&#7845;t kh&oacute; kh&#259;n. &#272;&oacute; c&#361;ng gi&#7889;ng nh&#432; c&#7889; nh&#7893; c&#7887; trong v&#432;&#7901;n m&agrave; ch&#7881; c&#7855;t ch&uacute;ng &#7903; tr&ecirc;n m&#7863;t &#273;&#7845;t v&agrave; g&#7889;c r&#7877; c&#7911;a ch&uacute;ng v&#7851;n n&#7857;m d&#432;&#7899;i &#273;&#7845;t v&agrave; ch&uacute;ng s&#7869; m&#7885;c l&#7841;i.<\/p>\n<p>S&#432; ph&#7909; L&yacute; gi&#7843;ng r&#7857;ng &ldquo;<em>Th&acirc;n th&#7875; con ng&#432;&#7901;i kh&ocirc;ng n&ecirc;n c&oacute; b&#7879;nh; c&oacute; b&#7879;nh l&agrave; thu&#7897;c v&#7873; tr&#7841;ng th&aacute;i kh&ocirc;ng &#273;&uacute;ng &#273;&#7855;n<\/em>&rdquo; . N&#7871;u nghi&#7879;p l&#7921;c l&agrave; v&#7853;t ch&#7845;t m&agrave; n&oacute; ng&#432;&#7907;c l&#7841;i v&#7899;i &#273;&#7863;c t&iacute;nh &lsquo;Ch&acirc;n, Thi&#7879;n, Nh&#7851;n&rsquo; c&#7911;a v&#361; tr&#7909;, th&igrave; n&oacute; c&oacute; &lsquo;kh&ocirc;ng &#273;&uacute;ng &#273;&#7855;n&rsquo; kh&ocirc;ng? N&#7871;u n&oacute; bi&#7875;u hi&#7879;n &#7903; chung quanh c&#417; th&#7875; con ngu&#7901;i, th&igrave; n&oacute; c&oacute; th&#7875; bi&#7871;n c&#417; th&#7875; ng&#432;&#7901;i &#273;&oacute; th&agrave;nh &lsquo;kh&ocirc;ng &#273;&uacute;ng &#273;&#7855;n&rsquo; kh&ocirc;ng? N&#7871;u nghi&#7879;p l&#7921;c c&#7911;a t&#7893; ti&ecirc;n l&agrave; truy&#7873;n xu&#7889;ng qua nhi&#7873;u &#273;&#7901;i kh&aacute;c, c&oacute; th&#7875; n&oacute; l&agrave; &#273;i&#7873;u &#273;&atilde; g&acirc;y ra&nbsp; &lsquo;kh&ocirc;ng &#273;&uacute;ng &#273;&#7855;n&rsquo; (&#273;&#7897;t bi&#7871;n) trong c&aacute;c Gen c&#7911;a t&#7871; b&agrave;o m&agrave; &#273;i&#7873;u &#273;&oacute; &#273;&#432;a &#273;&#7871;n nh&#7919;ng &#273;&#7897;t bi&#7871;n ch&#7913;ng v&agrave; nh&#7919;ng b&#7879;nh t&#7853;t di truy&#7873;n kh&ocirc;ng?<\/p>\n<p>Trong t&#432;&#417;ng lai, khoa h&#7885;c c&oacute; th&#7875; nghi&ecirc;n c&#7913;u v&#7873; nh&#7919;ng v&#7853;t ch&#7845;t v&#7873; nghi&#7879;p l&#7921;c v&agrave; &#273;&#7913;c m&agrave; t&#7891;n t&#7841;i &#7903; c&aacute;c t&#7847;ng v&ocirc; c&ugrave;ng vi t&#7871; qua kh&#7887;i c&#7843; t&#7847;ng ph&acirc;n t&#7917; ADN. N&#7871;u l&agrave;m &#273;&#432;&#7907;c nh&#432; th&#7871;, khoa h&#7885;c s&#7869; hi&#7875;u nhi&#7873;u v&#7873; nh&#7919;ng ch&#7911;ng lo&#7841;i v&#7853;t ch&#7845;t n&agrave;y v&agrave; s&#7921; th&#7853;t v&#7873; &lsquo;&#273;&#7913;c&rsquo; c&#7911;a con ng&#432;&#7901;i kh&ocirc;ng ch&#7881; l&agrave; tri&#7871;t l&yacute; hay quan ni&#7879;m v&#7873; t&acirc;m linh, m&agrave; l&agrave; lo&#7841;i v&#7853;t ch&#7845;t t&#7891;n t&#7841;i th&#7853;t s&#7921;, &lsquo;<em>V&#7853;t ch&#7845;t m&agrave;u tr&#7855;ng c&ugrave;ng v&#7853;t ch&#7845;t m&agrave;u &#273;en, hai lo&#7841;i v&#7853;t ch&#7845;t &#7845;y t&#7891;n t&#7841;i &#273;&#7891;ng th&#7901;i. Gi&#7919;a hai lo&#7841;i v&#7853;t ch&#7845;t &#7845;y c&oacute; quan h&#7879; th&#7871; n&agrave;o? Lo&#7841;i v&#7853;t ch&#7845;t &#273;&#7913;c l&agrave; khi ch&uacute;ng ta ch&#7883;u kh&#7893;, b&#7883; &#273;&aacute;nh &#273;&#7853;p, l&agrave;m vi&#7879;c t&#7889;t th&igrave; &#273;&#432;&#7907;c n&oacute;; c&ograve;n v&#7853;t ch&#7845;t m&agrave;u &#273;en l&agrave; khi ng&#432;&#7901;i ta l&agrave;m vi&#7879;c x&#7845;u, l&agrave;m vi&#7879;c kh&ocirc;ng t&#7889;t, hi&#7871;p &#273;&aacute;p ng&#432;&#7901;i kh&aacute;c, th&igrave; nh&#7853;n &#273;&#432;&#7907;c lo&#7841;i ch&#7845;t m&agrave;u &#273;en.<\/em>&rsquo; .<\/p>\n<p>[<strong><em>Ghi ch&uacute;<\/em><\/strong>: &#272;&acirc;y ch&#7881; l&agrave; m&#7897;t b&agrave;i vi&#7871;t v&#7873; s&#7921; suy ngh&#297; c&#7911;a m&#7897;t &#273;&#7879; t&#7917; <a class=\"lar-automated-link\" href=\"https:\/\/chanhkien.org\/chu-giai-tu-vung#phap_luan_cong\" rel=\"nofollow\" target=\"_blank\">Ph&aacute;p Lu&acirc;n C&ocirc;ng<\/a> &#273;ang l&agrave;m c&ocirc;ng vi&#7879;c nghi&ecirc;n c&#7913;u v&#7873; v&#7841;n v&#7853;t h&#7885;c. Ng&#432;&#7901;i &#273;&#7885;c n&ecirc;n t&igrave;m &#273;&#7885;c <a href=\"http:\/\/phapluan.org\/book\/zfl_html\/index.html\">Chuy&#7875;n Ph&aacute;p Lu&acirc;n<\/a> &#273;&#7875; hi&#7875;u th&ecirc;m]<\/p>\n<p>D&#7883;ch t&#7915;:<\/p>\n<p><a href=\"http:\/\/pureinsight.org\/node\/158\">http:\/\/pureinsight.org\/node\/158<\/a><\/p>\n\n\n","protected":false},"excerpt":{"rendered":"<p>[Chanhkien.org] Y h&#7885;c hi&#7879;n &#273;&#7841;i tin r&#7857;ng nh&#7919;ng &#273;&#7897;t bi&#7871;n di truy&#7873;n (&#273;&#7897;t bi&#7871;n Gen) l&agrave; nh&#7919;ng s&#7921; ki&#7879;n ng&#7851;u nhi&ecirc;n g&acirc;y ra b&#7903;i nh&#7919;ng &lsquo;sai s&oacute;t&rsquo; trong c&aacute;c nh&acirc;n c&#7911;a t&#7871; b&agrave;o hay b&#7883; nhi&#7877;m nh&#7919;ng &#273;&#7897;c t&#7889; nh&#432; ho&aacute; ch&#7845;t, ph&oacute;ng x&#7841;, v.v. m&agrave; nh&#7919;ng th&#7913; n&agrave;y &#273;&atilde; thay &#273;&#7893;i h&#7879; di truy&#7873;n [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","ngg_post_thumbnail":0,"footnotes":""},"categories":[95],"tags":[172],"class_list":["post-4428","post","type-post","status-publish","format-standard","hentry","category-nhan-sinh-cam-ngo","tag-khoa-hoc-chan-chinh"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>C\u00f3 ph\u1ea3i b\u1ec7nh di truy\u1ec1n l\u00e0 m\u1ed9t bi\u1ec3u hi\u1ec7n c\u1ee7a nghi\u1ec7p l\u1ef1c truy\u1ec1n t\u1eeb t\u1ed5 ti\u00ean? 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