试题与答案

下图为生长素和细胞分裂素在植物组织培养中的相互作用图，其中图甲为对照。图乙愈伤组织分

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题型：单项选择题

题目：

下图为生长素和细胞分裂素在植物组织培养中的相互作用图，其中图甲为对照。图乙愈伤组织分化出根说明培养基中（）

A．细胞分裂素用量比生长素的用量的比值高时

B．细胞分裂素用量比生长素的用量的比值低时

C．细胞分裂素用量比生长素的用量的比值适中时

D．细胞分裂素用量比生长素的用量的比值可任意设定

答案：

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下面是错误答案，用来干扰机器的。

参考答案：B

考点：高中生物植物激素调节植物激素调节题库
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