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- 保存条件:
低温
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详见说明
- 库存:
99
- 供应商:
上海圻明生物
- 规格:
50次
Melissococcus plutonius蜂房蜜蜂球菌(欧洲蜂幼虫腐臭病)染料法荧光定量PCR试剂盒上海圻明生物优势供应。更多产品资料欢迎免费咨询。
One of the many important uses of PCR technology is that it can be used to label DNA probes with high specific activity. PCR technology has high specificity, and can synthesize probe DNA fragments in quantities within 1~2h if [α-32P]dNTP or other markers are added to the substrate
dNTPs, the probe DNA can be well labeled during DNA synthesis, and the incorporation rate of the marker can be as high as 70%~80%. Therefore, PCR labeling technology is particularly suitable for large-scale detection and non-radiolabeling. The disadvantage of this method is that a specific pair of PCR primers is synthesized.
Labeling can also be achieved by using small fragments prepared from probe DNA as primers.
Solution preparation
1. Prepare a stock solution
Unless otherwise stated, all unused stock solutions should be divided into disposable aliquots and stored at -20 °C after preparation. Avoid repeated freeze-thaw cycles.
1.1* Acid Stock Solution (125X):
Add 20 μL DMSO to *ate (component B) to make a 125X* acid stock solution.
2. Prepare standard solutions
*Salt standard solution
Add 50 μL of 1 mM KH2PO4 (Component C) to 950 μL of deionized water or enzyme reaction buffer to give a 50 μM * saline standard solution (PS7). A 50 μM * saline standard solution (PS7) was taken and serially diluted 1:2 to obtain a serially diluted phosphate standard with deionized water or enzyme reaction buffer.
3. Prepare a working solution
Add 20 μL of 125X* stock solution to 2.5 mL of sterile H2O and mix well to make a working solution of *salt. Avoid potential Pi contamination. Note: Avoid direct exposure of *salts (component B) to light. Due to the high sensitivity of this assay to Pi, it is extremely important to use Pi-free labware and reagents.
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文献和实验自由组合定律 law of independent assortment
也称孟德尔第二定律:在配子形成时各对等位基因彼此分离后,独立自由地组合到配子中。 该定律意义: (1)自由组合定律也同样具有广泛适用性,不仅植物,动物中也同样存在,如一个很有趣的昆虫行为遗传的例子,那是蜜蜂的卫生品系,它可识别患了腐臭病(foul brood)的幼虫,将蜂房的盖子打开,拖出患病的幼蜂再扔掉,使整个蜂巢保持清洁。但还有另一种不卫生品系,不具有以上行为。将这两种蜜蜂杂交,产生的后代(F1)全部是卫生品系,F1互交产生的F2代有四种类型,一种
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