目錄原核生物有以RNA為遺傳的嗎 真核生物的遺傳物質(zhì)存在于 真核的遺傳物質(zhì)都是DNA嗎 原核生物遺傳物質(zhì) 真核和原核生物的遺傳物質(zhì)
瀵圭殑!姣斿?傚姩鐗┿?佹?嶇墿銆佺湡鑿岀瓑閬椾紶鐗╄川閮芥槸DNA銆?
姝ゅ??
1.鍘熸牳緇嗚優(yōu)涔熶互DNA涓洪仐浼犵墿璐?錛屽彧瑕佹槸鐢辯粏鑳?yōu)缁勬垚鐨勭敓鐗?浣撳唴閮芥湁DNA鍜孯NA,浣嗕互DNA涓洪仐浼犵墿璐?錛?
2.鏈変簺鐥呮瘨涓嶆槸錛?
鏈変簺鐥呮瘨浣撳唴鍙?鏈塂NA,浠?DNA涓洪仐浼犵墿璐?,姣斿?傦細(xì)涓?閮ㄥ垎鍣?鑿屼綋錛?澶╄姳鐥呮瘨,鑺辨ぐ鑿滆姳鍙剁梾姣掔瓑鏄疍NA鐥呮瘨錛?
鏈変簺鐥呮瘨,鍙?鏈塕NA,鍒欎互RNA涓洪仐浼犵墿璐?,姣斿?傦細(xì)鑹炬粙鐥呮瘨錛岀儫鑽夌僵锠㈤ⅳ鑺卞彾鐥呮瘨錛孲ARS 鐥呮瘨錛孧ERS鐥呮瘨錛?鍩冨崥鎷夌墿璐ョ梾姣?錛圗BV錛夛紝瑗跨彮鐗欐祦鎰?鐥呮瘨錛岀敳鍨嬫。灝篐1N1嫻佹劅鐥呮瘨錛岀?芥祦鎰熺梾姣掞紝鍣?鑿屼綋錛堟湁涓?閮ㄥ垎鍣?鑿屼綋鏄疍NA鐥呮瘨錛屽?俆2鍣?鑿屼綋錛夌瓑錛?
鏄?鐨勩??
鍙?瑕佹槸緇嗚優(yōu)緇撴瀯鐨勭敓鐗╋紝涓嶇?℃槸鍘熸牳鐢熺墿榪樻槸鐪熸牳鐢熺墿錛岄仐浼犵墿璐ㄩ兘鏄疍NA銆?
榪欏彞璇濅笉瀵癸紝鐪熸牳緇嗚優(yōu)鐨勯仐浼犵墿璐ㄦ槸DNA銆傚叿浣撴潵璇寸粏鑳?yōu)鐢熺墿鐨勯仐浼犵墿璐ㄩ兘鏄疍NA錛岀梾姣掔殑閬椾紶鐗╄川涓篋NA鎴栬?呬負(fù)RNA錛屾槍鏃︽墍浠ュ?規(guī)暣宸炲仛涓?鐢熺墿鐣岃?岃█錛岀粷澶у?氭暟鐢熺墿鐨勯仐浼犱負(fù)DNA錛屾墍浠ユ?葷粨鍑虹殑鐢熺墿鍐岃繀琛＄殑閬椾紶鐗╄川涓昏?佷負(fù)DNA鏄?閽堝?規(guī)暣涓?鐢熺墿鐣岃?岃█鐨勩??
瀵瑰垯灞辯殑!
鍙?瑕佹槸緇嗚優(yōu)鐢熺墿~鍧囨湁閬椾紶鐗╄川鏄疍NA~
鑰屽?傛灉鏄?鐥呮瘨鐨勮瘽~閬椾紶鐗╄川灝辨槸DNA鎴栬?匯NA
鍏抽敭鐨勪竴鐐箏濡傛灉闂?緇嗚優(yōu)鑲嗘礊璐ㄤ腑閬椾紶鐗╄川鏄?瀛欓浌涓?浠?涔垀涔熸槸DNA~鍗冧竾鍒?浠ヤ負(fù)緇嗚優(yōu)璐ㄤ腑RNA澶殈閬椾紶鐗╄川鏄疪NA
鍔犳補(bǔ)!
涓嶅?廣?傜湡鏍哥敓鐗╃粏鑳?yōu)涓殑閬椾紶鐗╄川鏈塂NA鍜孯NA銆傚叾涓璂NA鏄?涓昏?佺殑閬椾紶鐗╄川銆?
