人类中,显性基因D对耳蜗管的形成是必需的,显性基因E对听神经的发育是必需的;二者缺一,个体即聋。这两对基因分别位于两对常染色体上。下列有关说法,不正确的是( )
A:夫妇中有一个耳聋,也有可能生下听觉正常的孩子
B:一方只有耳蜗管正常,另一方只有听神经正常的夫妇,只能生下耳聋的孩子
C:基因型为DdEe的双亲生下耳聋的孩子的几率为7/16
D:耳聋夫妇可以生下基因型为DdEe的孩子
Dear Betty,
I'm your eraser Jill. This afternoon you lost me in your classroom. Simon found me and gave me to your English teacher Ms. Green. Now Ms. Green's three keys and I are in Ms. Green's bag. The bag is yellow. It's on Ms. Green's desk. Please call Ms. Green at 718-0167 and ask her for me. You can come to the library, too. Ms. Green is in the library now.
Jill