How's your sister, Mary? She's thin and short.____
— Jimmy, where are my glasses? I have looked everywhere.
—Oh, Granny. They are _____ on your nose.
He is __________ than any other student in his class.
兔子的毛色是由一组复等位基因控制的.C+控制野鼠色,对其他3个复等位基因为显性;Cch控制灰色,对Ch和Ca为显性;Ch控制喜马拉雅白化,对Ca为显性;Ca是一种突变型,不能形成色素,纯合时兔子毛色为白色.以下分析正确的是( )