guanine 的定义
Biochemistry.
- a purine base, C5H5N5O, that is a fundamental constituent of DNA and RNA, in which it forms base pairs with cytosine. Symbol: G
更多guanine例句
- Inside the reflective flash spots lie little platelets of the compound guanine that have grown in such a way that they can reflect colorful light depending on the angle.
- What gives the fish guanine platelets particular abilities though remains a puzzle.
- In earlier work, he’s shown how guanine platelets can be manipulated in magnetic fields, suggesting that such sensors could be targeted and herded.
- The cutis contains several kinds of specialized cells in many layers, each filled with minute granules of guanine.
- Adenine and guanine are constituents of all nucleic acids (see below) and, hence, are found in all plant and animal tissues.
- Besides white (guanine) cells, the pigment includes black, brown, yellow and red.
- The artificial preparation of theobromine and caffeine from xanthine, and guanine also show clearly their relations.
- It was first prepared in 1861 by A. Strecker, who oxidized guanine with hydrochloric acid and potassium chlorate.