PTC味盲为常染色体隐性性状，我国汉族人群中PTC味盲者占9%，相对味盲基因的显性基因频率是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='24544' and id < 2107764 and id<>'2107764' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24544' and id > 2107764 and id<>'2107764' order by id asc limit 5