How to estimate RNA polymerase II activity in eukaryotes?

More Hayder Obayes Hashim's questions See All

How to extract DNA from Rovers Orcellex Brush?

Hello researchers I have a fresh oral tissue samples collected by Rovers Orcellex Brush , unfortunately I can not use any kit. Please, I need trusted protocol to extract DNA from this brush...

10 November 2019 8,485 3 View

What is the primers sequences of SNORD44 ?

Hello every one I'm working on micRNA expression and need the SNORD44 for normalization , please i need the sequences of SNORD44 primer because i cant find it in the published papers...

04 May 2019 4,943 1 View

What is the reasonable explanation of this abnormal haplotypes association odd ratio?

Hello everyone I'm working on haplotypes case control association study, for data analysis , I employed two online analysis softwares , The first is (SNPstats) which gave me extremely large odd...

11 December 2018 1,515 1 View

Why there are two different protocols to isolate DNA from frozen and fresh blood ?

Hello researchers all of us know, that we need a special protocol to extract DNA from frozen blood other than protocol which used to extract DNA from fresh blood . the question is : .what are...

08 September 2018 480 5 View

What are the detailed buffer recipes and protocol to isolate and purify genomic DNA by silica spin column ?

Hello researchers Can somebody please , provide me the recipes to prepare buffers that used with silica spin column and the protocol to isolate the genomic DNA from blood . best regards

02 March 2018 1,327 4 View

Exonic or intronc region, which one is more potential to has polymorphisms that are associated with a trait ?

Hello researches I'm planning to sequence about 800 bp region of a certain gene to assess its association with a certain disease. the question is , do i have to choose an intronc or exonic...

31 December 2017 3,511 5 View

In HPLC/UV , can the negative peak resulted from fluorescent material?

Hello researchersthere are several reasons to observe a negative peak in HPLC/UV chromatogram , but can this negative peak be due to the presence of fluorescent material. best regards ....

08 September 2017 6,657 4 View

Annealing time or annealing temperature which one is better for PCR optimization ? and why?

Hello researchers the annealing temperature gradient is the routine step in PCR optimization , but why we do not use annealing time for optimization? regards .

07 August 2017 6,134 15 View

Is it essential to use high fidelity-pcr prior to sequencing ?

Hello researchers i'm aiming for sequencing 880 nt RNA segment. can i use the ordinary Taq-PCR master mix or i have to use the high fidelity master mix .thank for any suggestions.

06 July 2017 3,910 9 View

What is the fate of proteins after they have been going out the SDS-PAGE gel ?

Hello researchers I just want to know what happen to the proteins molecules after they migrated out of the gel ( in SDS-PAGE) , of course the simple answer says that the protein migrated to the...

11 December 2016 5,996 11 View

How to learn more about SPSS and its Application?

I would like to learn more about SPSS and Its application especially in regards to data analysis. Please suggest me how I can learn more about it. Thank you so much.

11 August 2024 9,101 4 View

Is there a problem with my RNA pellet?

Hello, I am currently having problems with RNA extraction. I am using mouse liver (C57BL6J), and I have extracted RNA from mouse liver before. Before this experiment, my final RNA pellets were...

11 August 2024 7,082 3 View

Can I base on reverse DNA sequences to perform alignment, convert to amino acids and GenBank submission?

I have reverse sequences (AB1 format), can I base on reverse DNA sequences to perform nucleotide alignment, convert nucleotides to amino acids and deposit the sequence in GenBank database?

11 August 2024 5,138 1 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

Text-Communication from the M1 Hand Area using BCI—and then there is Elon Musk?

Willett, Shenoy et al. (2021) have developed a brain computer interface (BCI) that used neural signal collected from the hand area of the motor cortex (area M1) of a paralyzed patient. The...

10 August 2024 7,180 0 View

Has anyone applied Python in the field of textile engineering for data analysis, automation, or smart textiles?

I'm currently exploring the application of Python in textile engineering, specifically in areas like data analysis, process automation, and the development of smart textiles. I'm interested in...

10 August 2024 7,429 2 View

Strugglling with m6A dot blot any suugesstion ?

I have been doing the m6A dot blot for a while with no improvement, I am extracting the RNA, and I can see the dots although the three biological replicas give a different reading on the memberan...

10 August 2024 8,539 5 View

Why Do TDS and EC Increase with Larger Wastewater Volumes, While BOD and COD Decrease?

I have carried out MFC experiments on three different volumes, 50, 500 and 1000 mL of wastewater. Results after MFC treatment shows that TDS and EC are more in larger volumes of water i.e. TDS and...

09 August 2024 9,621 0 View

How can I use the cif data obtained from rietveld refinement extracted via gsas2, for microstructural analysis using ETEX software?

09 August 2024 7,718 0 View

Could it be a cell culture contamination?

Hello everyone! I observed in my culture (htert-RPE1 cells) an orange- red particle at the bottom of the dish. It is visible to the naked eye as a very very small red dot. Could it be a...

09 August 2024 2,824 3 View