What are the mechanisms by which polyploidy i.e. duplication of genetic material produces fertile gametes? Who has demonstrated that this is precisely the case in the restoration of fertility in hybrids in plants?
Currently, I'm working with banana fruits. I've tried to do RNA extractions with different methods, and I've gotten total RNA without contamination, but I couldn't get a high concentration of...
22 February 2021 6,126 2 View
I need to design an spiral heat exchanger, buy I don't know what reference or bibliography (preferably a book) should I consult in order to get an updated and reliable methodology related with...
14 February 2021 7,910 3 View
Hello there, I'm currently trying to over-express a gene by transfecting the cells with a pcDNA6 plasmid containing my target gene. When I measure the mRNA for my gene of interest, the levels are...
03 February 2021 4,112 4 View
Hi! I would like to know with which statistical software the bang blinding index and the James blinding index and how to do it. Thanks
09 December 2020 1,363 2 View
I am hoping to determine the mass per unit area (as per DIN 50938) of a black oxide coating. I use water to achieve the required 1mol/l hydrochloric acidic solution, but a fellow lab had used...
06 December 2020 4,806 1 View
Greetings to all. I have some questions about setting up DFT calculations in Gaussian software (I am a beginner in these matters), and trying to calculate the energy of the first excited triplet...
06 December 2020 3,504 4 View
I am working on identifying biomarkers of the outcome of treatment in a disease. I have 20 potential biomarkers and more than 30 potential confounders. Actually, I know that some of those...
11 November 2020 3,794 3 View
In order to analyze immunohistochemistry images, lately I have been using the ImageJ Macro "IHC profiler" developed by Varghese and colleagues and I have a question about the results you get from...
11 October 2020 6,735 1 View
I want to elaborate a presentation to my students of Chemical Reaction Engineering where I can illustrate them reactor design with multiple reactions, including reversible exothermic reactions. I...
28 September 2020 6,465 1 View
I want to use ImageJ for counting my different tephra populations in a thin section sample, but I am not able to separate the lighter populations from the darker ones in ImageJ before counting. I...
28 September 2020 5,471 2 View
Soil fertility, plant nutrition
23 December 2020 7,301 5 View
Hi all, I have tried to use Crispr Cas9 ( plasmid px333_cas9_mCherry) to delete some enhancers. I designed sgRNA using Chopchop website to target both sides of an enhancer to induce homologous...
13 December 2020 942 3 View
Examples of articles of trivial scientific values: 1. Meswak extract did not have much effect on female mouse fertility. Phytomedicine. 2. Leached components from dental composites and their...
02 December 2020 7,609 6 View
I need PCR based markers related to fertility restorer genes in R-line of rice hybrid, fertility maintainer genes in B-line of rice and cytoplasmic male sterility genes related markers in -line.
17 November 2020 4,193 1 View
Want to understand the scientific mechanisms to know type of soil suitable for agricultural purpose.
22 October 2020 4,941 3 View
Many chemical fertilizers are commonly used to improve soil fertility and productivity. Urea, TSP, MP, Gypsum, Borax, Ammonium nitrate etc. are used familiarly all over the world. Though these can...
22 September 2020 9,700 20 View
Turmeric is a polyploid. Mostly sterile. However, it sets seed occassionally. I have collected seed and kept in poretrays filled with cocopeat. I have not observed any germination even after 15...
28 August 2020 8,342 4 View
Fertility Center - IECH, Monterrey, Mx.
07 July 2020 3,006 5 View
Dear Sir/ Madam, Greetings of the Day. Hope you all are doing well. As a beginner I want to know the what are the recent development made by soil scientist in the 21st Century ? Specifically in...
25 June 2020 8,468 14 View
Fertile soils are an important requirement for agriculture. Basic soil constituents are minerals, humus, moisture and air. Soil ability to grow plants is certainly affected by the increase or...
17 June 2020 1,867 4 View