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1．图解策略 图形不仅直观、形象，利于思考，而且信息量大， 概括性强。一个简单的图形可以表示出需要很长文 字才能表述清楚的信息。根据题意画出示意图，可以 使复杂问题简单化。 例1 假定一个 DNA 分子含有1000个碱基对， 将这个 DNA 分子放在用~(32)P 标记的脱氧核苷酸的培养 液中让其复制一次，则新形成的 DNA 分子的相对分 子质量比原来增加了( )
1. Graphical Strategy Graphics are not only intuitive, visual, and conducive to thinking, but also have a large amount of information and a strong generality. A simple graph can show that very long text is required to express clear information. Drawing sketches based on questions means simplifying complex issues. Example 1 Assuming that a DNA molecule contains 1000 base pairs, the DNA molecule is placed in a (32)P-labeled deoxyribonucleotide medium and allowed to replicate once. The relative molecular mass of the newly formed DNA molecule is then replicated. Increased from the original ()