<button id="eiezk"><video id="eiezk"></video></button>
      <fieldset id="eiezk"></fieldset>
      <acronym id="eiezk"><small id="eiezk"></small></acronym>
    1. <dl id="eiezk"><dfn id="eiezk"><meter id="eiezk"></meter></dfn></dl>
      <acronym id="eiezk"><address id="eiezk"></address></acronym>
        <source id="eiezk"><pre id="eiezk"></pre></source>

        產品名稱 Nucleotides SuperModel Kit
        產品貨號 NUC2
        產品價格 現貨詢價,電話:010-67529703
        產品規(guī)格
        產品品牌 vwr
        產品概述
        產品詳情
        Piece Together DNA from its Four Nucleotide Components

        Useful for comparing structures and properties of organic bases, this set will allow you to build deoxyadenosine, deoxyguanosine, deoxycytosine, and thymidine; demonstrate hydrogen bonding between base pairs; construct phosphate ions; and then put each individual model together to create a two base-pair section of a DNA molecule. Each model is easy to set up and is flexible, durable, and economical. The kit includes 40 carbons, 30 oxygens, 60 hydrogens, 16 nitrogens, three phosphorus, and 41 connectors to make single, double, hydrogen, and glycosidic bonds, as well as an instruction booklet.

        產品資料
        <button id="eiezk"><video id="eiezk"></video></button>
            <fieldset id="eiezk"></fieldset>
            <acronym id="eiezk"><small id="eiezk"></small></acronym>
          1. <dl id="eiezk"><dfn id="eiezk"><meter id="eiezk"></meter></dfn></dl>
            <acronym id="eiezk"><address id="eiezk"></address></acronym>
              <source id="eiezk"><pre id="eiezk"></pre></source>

              国产黄色视频免费观看,亚州精品天堂中文字幕,国产无套精品久久久久久 | 人人看人人摸人人透,国产精品国产三级国产普通话蜜臀,香蕉依人 | 超碰性爱,好深好湿好硬顶到了好爽小喜,深夜福利动态 | 亚洲福利视频网站,juliaann欧美二区三区,国内又粗又大视频 | 人人摸人人操人人看,成人网大香蕉,大香蕉伊人视频在线 | 国内视频精品,三级a视频,操大奶少妇 | 做爱在线观看免费,色婷婷狠狠五月综合天色拍,免费黄片入口 | 人人操干,小妾成泄欲工具h,成年男女免费视频网站 | 一极毛片,冲田杏梨av在线播放,超碰人人操在线 | 国产操屄视频,国产特级全黄寡妇毛片,欧美老逼逼 |