That DNA bases attract is not a surprise,because base pairs are complementary like right-and left-handed gloves: adenine binds with thymine, cytosine with guanine.
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释义
DNA碱基对有吸引力并不令人吃惊,因为碱基对就像左和右手套一样是互补的:腺嘌呤约束胸腺嘧啶,胞嘧啶约束应鸟嘌呤。
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