| 4 | 1/1 | 返回列表 |
| 查看: 4366 | 回復(fù): 3 | ||
rogersgene木蟲 (小有名氣)
|
[求助]
求助各位前輩分析一下這張大腸桿菌質(zhì)粒提取電泳圖 已有1人參與
|
|
這是我們大三的分子生物學(xué)實驗。 材料:大腸桿菌,提前震蕩12h。 方法:堿裂解法 Marker: 2k,在最右邊。 瓊脂糖凝膠電泳,電泳電壓165v。 備注: 在加入溶液I II III后,略去了加氯仿異戊醇這一步,而是直接離心,轉(zhuǎn)移上清進(jìn)行后續(xù)步驟。 我的問題是,1.上方的紅框內(nèi)是其他同學(xué)做的,泳道下部有非常明顯的涂抹狀的帶,是rna嗎,如果是,是不是因為沒加rna酶所致?2.下方紅框的6個泳道是我們做的,請問自上而下,箭頭所指的三條帶各是什么?我的理解是:自上而下:開環(huán)質(zhì)粒,超螺旋質(zhì)粒,rna。(網(wǎng)上說堿裂解法線性質(zhì)粒少)3.我懷疑最上面的箭頭所指的帶含有基因組dna。4.右上角右一泳道的兩條恰好分開的帶合是什么? 這是第一次發(fā)帖,本科生剛剛接觸分子,經(jīng)驗匱乏, 還請多多指教! 發(fā)自小木蟲IOS客戶端 |
|
1. The smear bands with hypersensitivity as your mentioned have the greater molecular weight than RNA contamination which is less than 100bp in size. I believe that these are impurities, such as proteins and polysaccharides, migrating from the lower wells. 2. The relaxed circular molecular form, and the full-length linear molecular form of the uncut plasmid usually run very close together and are not always resolved from one another. The upper band is the combination of relaxed circular molecules and full-length linear molecules. You are right on the other bands. 3. The genomic DNA is 23kb or greater in size. In general, it is easy to separate the gDNA molecules and plasmid molecules on an agarose gel. 4. They are the relaxed circular molecules and the full-length linear molecules running as separate bands. |
木蟲 (小有名氣)
送紅花一朵 |
英文的回復(fù),好厲害!我讀懂您的意思了,非常感謝!送上紅花一朵!但我想請問,為什么超螺旋質(zhì)粒的量那么少呢?超螺旋狀態(tài)不就是我們需要的嗎?是本來就這么少,還是我們提取水平的問題? 發(fā)自小木蟲IOS客戶端 |
新蟲 (初入文壇)
|
????????С????????_plasmid??С ???D?????????l??????????|?w ????????B??o???A?y??С???????????????K????????????????????????z??С???_????l???????????? ?????摪??RNA ??????RNase ??? ????С???Android????? |
| 4 | 1/1 | 返回列表 |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
|
百度網(wǎng)盤 |
360云盤 |
千易網(wǎng)盤 |
華為網(wǎng)盤
在新窗口頁面中打開自己喜歡的網(wǎng)盤網(wǎng)站,將文件上傳后,然后將下載鏈接復(fù)制到帖子內(nèi)容中就可以了。 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 070300化學(xué)求調(diào)劑 +12 | 小黃鴨寶 2026-03-30 | 12/600 |
|
|---|---|---|---|---|
|
[考研] 340求調(diào)劑 +4 | 希望如此i 2026-03-31 | 4/200 |
|
|
[考研] 理學(xué)07化學(xué) 303求調(diào)劑 +8 | 睿08 2026-03-27 | 8/400 |
|
|
[考研] 271求調(diào)劑 +5 | 勒布朗@ 2026-03-31 | 7/350 |
|
|
[考研] 282求調(diào)劑 不挑專業(yè) 求收留 +4 | Yam. 2026-03-30 | 5/250 |
|
|
[考研]
材料調(diào)劑
5+5
|
想要一壺桃花水 2026-03-25 | 11/550 |
|
|
[考研] 一志愿中國科學(xué)院大學(xué)265求調(diào)劑 +6 | 恬淡ye 2026-03-31 | 7/350 |
|
|
[考研] 274求調(diào)劑 +6 | xiao愛同學(xué) 2026-03-30 | 6/300 |
|
|
[考研] 282求調(diào)劑 +3 | 呼吸都是減肥 2026-03-31 | 3/150 |
|
|
[考研] 0817化工學(xué)碩調(diào)劑 +7 | 努力上岸中! 2026-03-31 | 7/350 |
|
|
[考研] 福建理工大學(xué)材料學(xué)院先進(jìn)合金團隊招收考研調(diào)劑學(xué)生 +3 | 大華金商都 2026-03-30 | 4/200 |
|
|
[考研] 317求調(diào)劑 +8 | 十閑wx 2026-03-24 | 8/400 |
|
|
[考研] 材料化工340求調(diào)劑 +3 | jhx777 2026-03-30 | 3/150 |
|
|
[考研] 284求調(diào)劑 +14 | junqihahaha 2026-03-26 | 15/750 |
|
|
[考研] 291求調(diào)劑 +5 | Y-cap 2026-03-29 | 6/300 |
|
|
[考研] 340求調(diào)劑 +6 | Amber00 2026-03-26 | 6/300 |
|
|
[有機交流]
高溫高壓反應(yīng)求助
10+4
|
chibby 2026-03-25 | 4/200 |
|
|
[考研] 材料求調(diào)劑 +5 | .m.. 2026-03-25 | 5/250 |
|
|
[考研] 081200-11408-276學(xué)碩求調(diào)劑 +4 | 崔wj 2026-03-26 | 4/200 |
|
|
[考研] 302求調(diào)劑 +4 | 錦衣衛(wèi)藤椒 2026-03-25 | 4/200 |
|