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【简答题】
设玉米子粒有色是独立遗传的三显性基因互作的结果,基因型为A_C_R_的子粒有色,其余基因型的子粒均无色。有色子粒植株与以下3个纯合品系分别杂交,获得下列结果: (1)与aaccRR品系杂交,获得50%有色子粒 (2)与aaCCrr品系杂交,获得25%有色子粒 (3)与AAccrr品系杂交,获得50%有色子粒 问这些有色子粒亲本是怎样的基因型? 请手写拍照上传
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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皮皮学刷刷变学霸
举一反三
【多选题】以下说法正确的是:( )。
A.
政府要通过管制来促进竞争并最终解除管制
B.
政府对垄断市场进行管制干预的目的在于恢复市场的竞争活力
C.
政府管制是要把市场置于政府的行政领导之下
D.
市场一旦恢复了原有的生机，就应该及时解除管制
【单选题】Jim with his parents _____ abroad. They ____ back in two weeks.
A.
have gone；will come.
B.
have went
C.
has gone；will come
D.
has went
【单选题】Jim _____ abroad with Tom. They ____ back in two weeks.
A.
have gone;will come.
B.
has gone;will come .
C.
have been to;have come
D.
has been;come
【单选题】Della turned all of her pockets inside out only to find $ 1.87 buy Jim a present for Christmas.
A.
with what to
B.
with that she can
C.
in which to
D.
with which to
【单选题】Jim is the only one of students who _______ abroad. He is proud.
A.
has been
B.
have been
C.
has gone
D.
have gone
【单选题】以下说法错误的是：（）
A.
政府要通过管制来促进竞争并最终解除管制
B.
政府对垄断市场进行管制干预的目的在于恢复市场的竞争活力
C.
市场一旦恢复了原有的生机，就应该及时解除管制
D.
政府管制是要把市场置于政府的行政领导之下
【简答题】下列各项,影响企业利润项目的有( )。
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