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问题 单项选择题

A种植物细胞和B种植物细胞的结构如下图所示（仅显示细胞核），将A、B两种植物细胞去掉细胞壁后，诱导二者的原生质体（植物细胞除去细胞壁后的结构即为原生质体）融合，形成单核的杂种细胞，若经过组织培养后得到了杂种植株，则该杂种植株是（）

A.二倍体；基因型是DdYyRr

B.四倍体；基因型是DDddYyRr

C.四倍体；基因型是DdYyRr

D.六倍体；基因型是DdYyRr

答案

参考答案：C

解析：试题分析：A细胞含2个染色体组，B细胞也含2歌染色体组，但由于彼此属于不同种，染色体组彼此不同，故融合后产生的杂种细胞含有4个染色体组，应属于四倍体，而基因型则是A+B，故应为DdYyRr；故选C。

单项选择题 共用题干题

患者张×，女性，23岁。2日前不慎感寒后出现喘逆上气，胸胀而痛，鼻煽，咳吐黄稠痰，恶寒无汗，身痛口渴，苔黄质红，脉浮数。

根据患者上述中医辨证类型，采取最为恰当的治疗方法是 （）

A.宣肺散寒

B.宣肺泻热

C.疏风解表

D.清肺化痰

E.清热化痰
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