miRNA
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<img src="/35fadcbb-a40c-50d1-afd2-7278d1f0b3f6.png"/></p>
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<img src="/9c089125-df76-5272-b6f4-01988b255696.png"/>
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<div style=" language: zh-CN; line-height: 125%; margin-top: 15.6pt; margin-bottom: 1.2pt; margin-left: .38in; text-indent: -.38in; text-align: left; direction: ltr; unicode-bidi: embed; vertical-align: baseline; mso-line-break-override: restrictions; punctuation-wrap: simple;"><span style=" font-size: 20.0pt;"><span style=" mso-special-format: bullet; color: #003366; mso-color-index: 1; font-family: Wingdings; font-size: 75%;">l</span></span><span style=" font-size: 20.0pt; font-family: 宋体; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: zh-CN; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">结构：</span><span style=" font-size: 20.0pt; font-family: 'Times New Roman'; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: en-US; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">21-25nt</span><span style=" font-size: 20.0pt; font-family: 宋体; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: zh-CN; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">长的单链小分子</span><span style=" font-size: 20.0pt; font-family: 'Times New Roman'; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: en-US; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">RNA </span><span style=" font-size: 20.0pt; font-family: 宋体; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: zh-CN; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">，</span><span style=" font-size: 20.0pt; font-family: 'Times New Roman'; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: en-US; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">5′</span><span style=" font-size: 20.0pt; font-family: 宋体; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: zh-CN; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">端有一个磷酸基团，</span><span style=" font-size: 20.0pt; font-family: 'Times New Roman'; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: en-US; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">3′</span><span style=" font-size: 20.0pt; font-family: 宋体; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: zh-CN; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">端为羟基，由具有</span><span style=" font-size: 20.0pt; font-family: 宋体; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #C00000; language: zh-CN; mso-style-textfill-type: solid; mso-style-textfill-fill-color: #C00000; mso-style-textfill-fill-alpha: 100.0%;">发夹结构</span><span style=" font-size: 20.0pt; font-family: 宋体; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: zh-CN; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">的约</span><span style=" font-size: 20.0pt; font-family: 'Times New Roman'; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: en-US; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">70-90</span><span style=" font-size: 20.0pt; font-family: 宋体; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: zh-CN; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">个碱基大小的单链</span><span style=" font-size: 20.0pt; font-family: 'Times New Roman'; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: en-US; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">RNA</span><span style=" font-size: 20.0pt; font-family: 宋体; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: zh-CN; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">前体经过</span><span style=" font-size: 20.0pt; font-family: 'Times New Roman'; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: en-US; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">Dicer</span><span style=" font-size: 20.0pt; font-family: 宋体; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: zh-CN; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">酶加工后生成。</span></div>
<div style=" language: zh-CN; line-height: 125%; margin-top: 15.6pt; margin-bottom: 1.2pt; margin-left: .38in; text-indent: -.38in; text-align: left; direction: ltr; unicode-bidi: embed; vertical-align: baseline; mso-line-break-override: restrictions; punctuation-wrap: simple;"><span style=" font-size: 20.0pt;"><span style=" mso-special-format: bullet; color: #003366; mso-color-index: 1; font-family: Wingdings; font-size: 75%;">l</span></span><span style=" font-size: 20.0pt; font-family: 宋体; mso-ascii-font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-fareast-theme-font: minor-fareast; color: #003366; mso-color-index: 1; language: zh-CN; mso-style-textfill-type: solid; mso-style-textfill-fill-themecolor: text1; mso-style-textfill-fill-color: #003366; mso-style-textfill-fill-alpha: 100.0%;">特点：具有高度的保守性、时序性和组织特异性 。</span></div>
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