How can we detect over expression of a gene?

Sometimes some gene gets over expressed in organism, so which molecular technique can help us to detect the over expression of that gene?

06 July 2019 9,406 5 View

Do pH maintaining chemicals interfere in DNA extraction?

We use EDTA, Tris-HCl and some other chemicals, whose pH remain almost 8.0. To balance pH 8.0 we use NaOH. Now I would like to know that; have these unwanted NaOH, HCl or Acetic Acid (if...

04 May 2018 5,684 1 View

Which is the solution used for pH meter sensor?

I need to know that which solution is used to keep the pH meter sensor wet. Some people say that KCl is used but which concentration and pH are better?

31 December 2017 5,670 3 View

How can we measure the band size that greater than 10Kb?

07 August 2017 3,413 2 View

Why do bacteria lose their plamids at normal condition?

Plasmids are extra chromosomal DNA of bacteria, but they have numerous functions for the survival and living of bacteria. It is claimed that bacteria lose their plasmids when they live without...

07 August 2017 3,918 9 View

Is it mandatory to culture Bacteria in an antibiotic rich medium before plasmid extraction?

It is claimed that bacteria lose their plasmids unless they are cultured in a antibiotic maintained medium. As a result a negative consequence will arise after plasmid DNA extraction. How will you...

07 August 2017 1,637 6 View

Where are the nod and nif genes of Rhizobia located?

07 August 2017 9,745 2 View

Is it possible to culture coffee plant in vitro?

Is anywhere it being tissue culture of Coffee plant in Bangladesh?

04 May 2017 4,613 2 View

What is selfish Rhizobia?

Somebody claims that there some selfish rhizobia which take benefits from the host but do not induced nodulation at the host. I did not get enough evidence about this. Could anybody help me by...

07 August 2016 3,089 6 View

Does Rhizobia take color from congured media (CRYMEA) after 3 Days?

31 December 2015 6,173 1 View

Protein-aptamer gel electrophoresis help, please??

Hi, I have problems with running gel electrophoresis. I have tried agarose gel electrophoresis and native PAGE. I have two proteins, which have molecular weights of ~30kDa and ~180kDa and two...

03 March 2021 4,275 4 View

Gel electrophoresis result for total RNA samples, 1.5 Agarose gel was used, How to improve the integrity of RNA?

Gel electrophoresis, RNA degradation, RNA extraction from fresh tissue

02 March 2021 5,433 5 View

How to regulate SSCP temperature in simple PAGE?

I'd like to perform single-strand conformation polymorphism (SSCP) in my thesis, however I cannot control the temperature of the vertical PAGE since we are using the conventional tanks. Is there a...

02 March 2021 9,157 1 View

Why are my bands weird in this Agarose gel?

Can someone please give me some possible things that could go wrong? Here is my recipe: 0.5g Agarose 50 mL of TAE 1x 1 uL ethyl bromide. Gel was run at 100V for 1 hour. The buffer used is also TAE.

01 March 2021 9,952 3 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

How to highlight novelty in your research paper?

I have come up with a method and had written a paper on it. Paper got rejected by a journal stating that there is no theoretical novelty. I am kind of confused on why the novelty that I am able to...

28 February 2021 2,393 8 View

How can I represent SDS-PAGE results for machine learning analysis?

I am trying to classify and analyze the results of an SDS-PAGE based array for bacterial detection using machine learning, but I have trouble finding the best way to represent the results with...

27 February 2021 9,176 3 View

Why my agarose gel staining sometimes looks not homogenic but like gradient (see the figure)?

I am worried about this overexposure of the upper part of the gel in the picture. Is it possible that this is the result of too much concentration of ethidium bromide? Why is there such a big...

25 February 2021 8,140 3 View

EMSA troubleshooting. Protein-DNA complex not migrating, cold probe lane with multiple bands. Can anyone help?

I'm running an EMSA to show the DNA binding activity of recombinant proteins versus the Wild type. Previous assays run by my research group using a different test system show the protein-DNA...

24 February 2021 8,325 1 View

Problem with ligating 2.8 kb insert into 8.5 kb plasmid?

I am trying to clone 2 copies of the same mammalian gene into the pSF-CMV-Ub-Puro Ascl (contains HindIII, KpnI and NheI cut sites) plasmid. This is what the final product is supposed to look like...

24 February 2021 6,310 3 View