<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(chǎn)品名稱 Human Genetics Taste Paper Set
        產(chǎn)品貨號 WARD470104-538
        產(chǎn)品價(jià)格 現(xiàn)貨詢價(jià),電話:010-67529703
        產(chǎn)品規(guī)格
        產(chǎn)品品牌 vwr
        產(chǎn)品概述
        產(chǎn)品詳情
        Students investigate the inheritance of the ability to taste sodium benzoate by constructing a pedigree of the ability of members of their family to taste them.
        Includes: 1 vial sodium benzoate, 1 vial control papers (100 papers per vial), and a family pedigree chart.
        *Test Paper Factoid: Taste papers can be used to demonstrate inheritance. The ability to taste PTC is a hereditary trait. 7 out of 10 people will taste it. Sodium Benzoate tastes sweet, salty, bitter or will be tasteless to different people. Thiourea tastes bitter to most but is tasteless to some!

        產(chǎn)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>

              日日弄天天弄美女BBBB,3p夹心h男男互攻,毛片艹逼 | 男生操女生国产,男人捅女人免费网站,国产成人AV一区二区三区在线观看 | 特级西西人体,污在线视频,JUy黑人喝羽月希奶水 | 日日夜夜伊人,国产美女在线一区,中国成人免费视频 | 中国免费黄色,做爱网页,秋霞毛片 | 三级一区二区三区,成年人免费观看,国产肥臀对白刺激在线视频 | 国产精品九九九国产偷窥,周冬雨扒开内裤让男人揉,亚洲AV无码影视 | 五月天偷拍自拍,国产午夜性,www.久久久 | 人妻精品综合 码,娇妻玩4p被三个男人玩,国模吧一二三四视频区 | 色播久久,啊啊啊好舒服好深,夜夜骚av |