?????¶é?´ï?ä¸?æ¸?æ¥?
ç¬?8???²ä?å¼?常æ???£æ?¹é?¢å????ï¼?
è¡¥å??说æ??ï¼?ç¬?8???²ä?å¼?常æ???£æ?¹é?¢å????ï¼?
2021-08-09 14:50
??è¦??¨è?
ç²¾é????ç?(1)
?±æµ·????¸»ä»»å?»å?æµ???å¸?ä¸?¥¿?»ç????»é??/span>ä¸???/span>
???¿ï????¿å?产ç?常è?????å¤??????????¾æ??????è¯?????æ²»ç??ï¼?å¦?ï¼???ç»???ï¼?ä¸?å???ï¼?å®????????å¦?å¨?????并ç????å¦?å¨??§å????????æµ?产å???©äº§ç???
????/p>
ç¬?8???²ä?å¼?常å???½æ???±ä?èº?????¾ç??导è?´ç?? ï¼?ä¹??????½æ????为平?¶é?¿æ???¥å??è¾?å°?ï¼??¶å??导è??8?·è???¶è?²ä?å¼?常ï???以å?¨å¹³?¶ç??è¯?ä¸?å®?è¦?注æ??å¤???ä¸?äº?ç»´ç??ç´?æ¯?è¾?é«???é£??©ï?è¡¥å??èº??????ç»´ç??ç´?ï¼?ä¹?è¦?å¤???ä¸?äº????¥å?»ç??é£??©ï?è¡¥å??èº????????è¦??????½è´¨ï¼?注æ??å¤???ä¼??????é«???º«???µæ??????
?¸å?³é???
???ȍ??????/p>
???²ä?å¼?å¸?chromosomeabnormalities)ä¹?称æ???²ä????²ä???chromosome dysgenesis)ï¼??????????²ä????°ç???常å??ç»????¸å???????²ä???NA?????½è´¨ç»???ï¼?大å??°å?ºå????ä½?äº????²ä???DNAä¹?ä¸??????²ä??????ç»????¸ç???ºæ???©è´¨ï¼????ºå????è½½ä???ç¾?ç±???人è??????1956)?¥æ??人类???²ä?ä¸?6?¡ï?Casperssonç?(1970)é¦?次å??表人类æ???²ä??¾å¸¦?§ç??????971å¹´å·´é»??½é?????²ä??½å??ä¼?è®?»¥?¥ï?å·²å???°äººç±»æ???²ä??°ç???常å??ç»????¸å??3000ä½?ç§?ï¼?????已确认æ???²ä???综å??å¾?100ä½?ç§?ï¼??ºå??ä½?ä¸??????¿å???²è?æ»??????²ä??????±å???¹å???
�??人群�????人群
?¸å?????¶ï???´¨?§é??å¿???å°?????ä¸?褶纹?³æ?µä?ç½??åþ????ç¢?伸è???·ç?´å??
临å?æ£??¥ï???´¨?§é??å¿???å°?????ä¸?褶纹?³æ?µä?ç½??åþ????ç¢?伸è???·ç?´å??
æ²»ç??è´¹ç???å¸?ä¸??²å?»é?¢çº¦(10000--20000??)
?¸å?³å?»é??/p>
?¥åº·???
?¨è???»ç???´å?
???¾å????¸»ä»»å?»å?
?´ç?????¸»ä»»å?»å?
é©??¥ä?主治?»å?
?¥åº·èµ?è®?a class="more-link" href="//www.box4s.com/yyk/jkkp/">?´å?
