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...image and the resolution your microscope can achieve. You achieve the highest resolution when your image is...the image is further magnified before it finally reaches your eyes. These lenses determine the magnification...wondering why there are multiple objective lenses. Each objective performs essentially the same task but...observations. Some microscopes have digital cameras attached to them that allow you to capture images directly...

... from each other, and a lower percentage gel will help separate larger bands. 10% Rule For each sample...and Running an Agarose Gel: Add loading buffer to each of your DNA samples and mix well. Use 5 µl of loading...run the gel without EtBr in the buffer you will reach a point where the DNA will be in the bottom portion...manufacturer's instruction will tell you the size of each band), you can infer the size of the DNA in your...

...can also be placed in walk-in refrigerators to achieve a temperature between 4°C and room temperature....water bath in the lab. Equipment Water Bath 10% bleach or 70% ethanol Distilled water Disinfectant Thermometer...filling the water bath with water. You may use a 10% bleach solution or a 70% ethanol solution to wipe down...temperature. Set up your water bath so that it will reach the desired temperature by the time you need it ...

...be empirically determined for each new batch of 1 mg/mL PEI and for each cell line. Considerations Before...magnesium, Corning 21-040-CV (cations can affect the attachment of adherent cells) 0.45 μm polyethersulfone filter...concentrations and ratios should be optimized for each transfer plasmid. Pro-Tip Endotoxins can inhibit...

...different enough in size to be easily resolved from each other. However, by choosing an enzyme or enzymes...others. When choosing restriction enzymes for this approach, it is often a good idea to choose two different...orientation so long as the expected products from each orientation are different sizes. Simply run the ...

...Addgene Careers series, we sit down with Addgene Outreach Scientist Jessica Welch to discuss her career ...scientific community. Jane Hannon Our Marketing & Outreach Specialist Jane Hannon discusses her career path...scientists looking to expand their international reach. Joel McDade Joel McDade, Addgene's Business Development...

...separate different components in a liquid sample. It achieves this by using centrifugal force, which is generated...keep in mind when using any centrifuge. However, each centrifuge may have specific instructions so be ... pellets form in approximately the same place in each sample. Place the centrifuge’s internal lid on the...

...), but any HEK293T cell line should work. This approach can be adapted for different cell lines and different...ratio will need to be empirically determined for each new batch of 1 mg/mL PEI prepared. There may be ... used, volumes, pH adjustment etc. Consequently, each batch needs to be validated and the best ratio of...

...cell/DNA mixture on ice for 20-30 mins. Heat shock each transformation tube by placing the bottom 1/2 to...enough colonies for your next step. Remember that each of these shortcuts will reduce the efficiency of...cuvettes. Follow the manufacturer's instructions for each. I got no transformants. What went wrong? Check ...

...Place a sterile poly-D-lysine coated coverslip in each well of a 24-well cell culture treated plate. Seed... aspirate the media from the 24-well plate. Wash each well with 500 µL of PBS, remove the wash, and dispose...dispose of it in an appropriate waste container. Fix each well with 500 µL of cold 4% paraformaldehyde in ...

...it is also a good idea to run an uncut sample of each plasmid to help with troubleshooting if your digests...approximately 1:3. Since the number of base pairs for each varies, it is difficult to calculate this based ...alone. One method is to conduct 2 ligations for each plasmid you are trying to create, with varying ratios...

...it is also a good idea to run an uncut sample of each vector to help with troubleshooting if your digests...approximately 1:3. Since the number of base pairs for each varies, it is difficult to calculate this based ... alone. One method is to conduct 2 ligations for each plasmid you are trying to create, with varying ratios...

...Blanking' measures the background inherent to the machine and your solvent. If using a NanoDrop to measure...A good purity ranges from 1.80-2.00). Repeat for each sample. Notes: Keep in mind that despite the accuracy...

...control? Addgene lists the primers used to obtain each result above the posted sequence in the "View Sequence...facility The corresponding primer sequence used for each reaction Tips and FAQs My sequence doesn’t match...

...the 3' end of the cut site until the first G is reached (shown in blue), at which point it will add back...transformation. Use 1-2 μl of annealing reaction for each transformation, following a standard protocol . ...

... SSB protein to improve accuracy and efficiency. Each enzyme has a specific and unique function for the...Complementary DNA fragments can subsequently anneal to each other. Phusion High-Fidelity DNA Polymerase - incorporates...

... reaction could look like this: 1 µg DNA 1 µL of each Restriction Enzyme 3 µL 10x Buffer 3 µL 10x BSA ...then add the appropriate amount of Master Mix to each tube. This will save you time and ensure consistency...

.... Wipe down all pipettes and equipment with 10% bleach prior to use. Reagent Preparation 100 mM Valproic...containing 108 mL cells: Transfer 6 mL of BCD TFX into each of two 50 mL tubes. Cap the tubes and incubate for...

...ice for 5 min. Add 150 μL of cold Solution III to each tube. Mix by inverting several times. A white precipitate...careful, the pellet is harder to see and less well attached to the tube after the 70% ethanol wash. You can...

... can be adapted for wet and semi-dry transfer approaches. Last Update: January 24, 2022 Workflow Timeline...to load an equivalent amount of total protein for each sample. Pro-Tip The ideal total protein loaded will...