问题
选择题
1997年，英国的“克隆羊”备受世界关注。“克隆羊”的关键之一是找到特殊的酶，这些酶能激活普通体细胞使之像生殖细胞一样发育成个体。有关酶的说法中错误的是 [ ]
A．高温或重金属能降低酶的活性
B．由题可知酶具有选择性和专一性
C．酶是具有催化作用的蛋白质
D．酶只有在强酸、强碱条件下才能发挥作用
答案
答案：D
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1997年，英国的“克隆羊”备受世界关注。“克隆羊”的关键之一是找到特殊的酶，这些酶能激活普通体细胞使之像生殖细胞一样发育成个体。有关酶的说法中错误的是 [ ]
A．高温或重金属能降低酶的活性
B．由题可知酶具有选择性和专一性
C．酶是具有催化作用的蛋白质
D．酶只有在强酸、强碱条件下才能发挥作用
答案：D
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