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近亲结婚小孩没什么病,但是会不会隔代遗传?有隐性基因的几率多大? 预防遗传病发生的最有效方法是（ ） A 检测自己的基因,查找致病基因 B 禁止近亲结婚 C进行遗传质询D 出生前诊断检查答对有赏 父母近亲结婚,会隔代遗传吗?要怎么办我外婆和我奶奶是亲姐妹,然后我爸妈就是表兄妹,生的我们四个孩子都没问题,也有2 个孙子都很好,我想知道近亲结婚会隔代遗传吗? 近亲结婚可不可以先查基因然后决定?忽然对这问题很好奇啊,都说是因为比如说有家族病的隐性基因,隐性隐性然后就显性了,那难道就因为两个人是近亲就一定各有一个隐性病基因吗?而且还 我家八十年以上的桂花树,花色黄白,八月花香数里,高五米以上,直径二十公分以上近三米处分枝,树冠三...我家八十年以上的桂花树,花色黄白,八月花香数里,高五米以上,直径二十公分以上近三 怎么才可以写好一篇好的College essay? 求essay：The effects of stress on college students哪位英语高手可以提供一篇essay：The effects of stress on college students.字数350~400... 一篇essay求个标题 内容是关于 Cause of Poverty内容是关于Cause of Poverty我的thesis：The causes of the poverty are variable that main reasons are lack of education,low income,the high cost of living and no health insurance.由于比 什么树缺了皮也能活?导管和筛管分生能力强. How is he?改为复数句无 辛普森一家英文介绍 30 I would live a better life without you 树剥掉皮后为啥会死 He should not eat anything.改为同义句 初二英语单词组句子leave,door,the,when,remember,the,you,to,house,close组成一个句子谢还有一个改写句子The Blacks went to the Great Wall last 用 next month 改写The Blacks ( ) ( ) to the Great Wall next month谢谢```如果写 1、You shouldn't eat anything for 24 hours.（改为同义句） You should ___ ____ for 24 hours.2、You may be kind of tired.（用maybe改成同义句）3、My father is going to visit my grandma tomorrow.（改为一般疑问句）___ your fathe You should't eat anything for 24 hours.You should _______ _______ for 24 hours. he shouldn't eat anything =he should eat _____ 英语：4The man pretended_(be)a student and got into the club for free.5Sorry_(keep)you waiting so long.6When his mother came back,the boy sat at his desk pretending_(do)his homework. ( ) Andy wants to be ______university student when he grows up.A.a B.an C.the It's even better than I thought it would be. I suppose I think about love more than anyone really should 这句中should为什么放最后?should不论作为助动词还是情态动词,都不能单独使用啊,没啥后面没有修饰词,不能理解,谁能告诉啊, 果蝇产生眼色素B和D的反应如下酶X 酶Y 底物A ——→ 色素B ; 底物C 一→ 色素D 野生型果蝇(显性纯合体)有B和D2种色素,眼为红褐色.缺色素B的果蝇为鲜红眼,缺色素D的果蝇为褐眼,缺B和D的果蝇为 眼睛里有黄色的色素沉淀怎么消除 Why not go to the movie?A.Yes,lets go.B.Let's hurry.C.I don't agree with you. 白眼球色素沉淀的手术怎么做 危险吗白眼球靠近黑眼球的边缘有黄褐色沉淀物,医生说是色素沉淀,并且说只有手术才能祛除,请问这个手术危险吗?麻烦您知道的请帮忙回答一下, 求知道:30年生苹果树被剥了皮能活吗 青蛙剥了皮, 英语主语顺序（复数)(we you they)到底怎样用啊? 英语主语顺序（复数)(we you they)到底是怎样用的? They are English girls.（主语改为she) 【英语】——你的爷爷奶奶身体好吗?——他们很好.—____ ____ your ____?—They____ ____.如上.填空~对着前面的中文~