Could you recommend some reliable company that offer a cloning service?

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Which kit would you recommend for isolation of RNA from dicotyledonous plants (leaves, stems and roots)? Which vendor would you recommend generally?

My plant material is rich in secondary metabolites. With the isolated RNA I would like to examine expression of interested genes in Real Time PCR.

10 November 2019 3,291 8 View

Why I see extra bands after single restriction enzyme digestion (EcoRI) but not after double digestion (EcoRI + HindIII)?

After double digestion of my plasmid DNA with EcoRI and HindIII I have obtained two bands as expected. But when I digested the plamid DNA only with EcoRI to linearize it, I obtained three bands...

11 December 2018 4,112 4 View

What upstream sequence of translation initiation site (AUG) should I use to obtain high protein expression in dicot Salvia milthiorrhiza?

question as above

09 October 2018 7,150 5 View

Which Kozak sequence should I use to obtain high protein expression in plants, especially in dicot Salvia milthiorrhiza?

question as above

09 October 2018 4,339 2 View

Can linear DNA be used as template for site-directed mutagenesis?

Is it possible to induce site-directed substitution mutation by quick-change method on linear dsDNA? or it has to be cloned in some vector? If yes, should it be treated with the Dpn1 enzyme...

03 March 2021 401 4 View

Does anyone have a recommendation for yeast reporter gene plasmid/protocol?

Hi, could anyone recommend a plasmid and/or protocol for reporter gene assay in S. cerevisiae? I want to assess the effect of growth conditions on a transcription factor, so I want to clone it`s...

01 March 2021 210 1 View

What is the most reliable source to get Impact factor of journals?

Source to get Impact factor of journals

01 March 2021 6,654 2 View

Expression cloning by using cDNA,do I need to modify the cDNA first?

I am going to have a expression cloning of mammalian gene by using shuttle plasmid to transforming the E.coli However I don't know I should only inserting the Coding sequence ,or I can...

28 February 2021 5,440 3 View

Which index or sites are reliable in determining of plant species?

There are many indexes when determining plant species: Plants of the World Online (POWO), International Plants Names Index (www.ipni.org), The Plant List (www.theplantlist.org) and others. But...

26 February 2021 3,404 10 View

Difficulty in cloning of 1kb gene into vector?

I am facing difficulties in cloning a 1kb gene into a vector (pJIT163). I have my gene on interest (GOI) in pUC57 and want to clone in pJIT163 using SalI and BamHI restriction sites. I am getting...

25 February 2021 3,221 7 View

How do historians determine the credibility sources in modern history?

For a source to be considered reliable it must contain accurate historical information. But how does one determine the accuracy and reliability of sources in modern and recent history since not...

23 February 2021 1,346 13 View

Why are Sanger Sequencing reads interrupted in some edited clones?

I have a Crispr/Cas9 edited bulk population and I can briefly check the indel ratios in the bulk population using Sanger sequencing. After cloning single cells, I wanted to check the indel types...

18 February 2021 8,198 6 View

Hi, can anybody help me with the suggestions how can I amplify a stress induced gene of 1107 bp?

I am trying to amplify the TGA1 (Transcription factor 1 ) of Arabidopsis ,which is 1107 bp. I have treated the plants with Salycylic solution over night and extracted the RNA and make cDNA. I...

17 February 2021 7,802 2 View

How can we measure the reliability and validity of our survey questionnaire?

We are conducting survey research on COVID-19 misinformation among students. How can we validate our survey for it to produce valid and reliable data? Also, what statistical tools can we use to...

16 February 2021 678 3 View