Hossem SAHRAOUI

6 Questions 13 Answers 0 Followers

Questions related from Hossem SAHRAOUI

How much time can we conserve ewes blood serum samples in - 20°C for biochemical analysis?

Hello, I would like to know how much long can I conserve serum samples in - 20°C for biochemical analysis : lipid profile (cholesterol, triglyceride...), protein profile (albumin, total...

30 May 2022 9,264 15 View

What are the criteria for selecting variables for PCA analysis ?

How can I select variables for PCA analysis from huge set of data? except the biological significance of the variables, are there other criteria for objectively choosing the most relevant...

22 February 2021 9,724 10 View

Which is the most appropriate graphical method to represent distances between breeds concerning one locus?

I'm studying the polymorphism of a microsatellite related productive performance in 4 goat breeds and I would like to represent the distances between them according to its polymorphism (alleles...

06 February 2020 1,763 3 View

On what criteria some specific microsatellites were recommended by the FAO and the ISAG for the characterization of animal genetic resources ?

Microsatellites recommended by the FAO and the ISAG for the animal genetic characterization, are they related to characters (qualitative or quantitative)? Or they were chosen on other criteria?...

11 November 2015 9,874 5 View

How do I calculate polypeptides pHi, especially when we have repeated amino acid?

How to calculate pHi of these peptides: 1) Arg-Ala-Arg-Ala-Phe 2) His-Phe-Trp-Asp-Asp thank you

12 May 2015 1,131 3 View

Does the number of variables affect the quality of PCA?

Hello, I'd like to know if the number of variables chosen for the principal component analysis affects the quality of the analysis. in other words, a PCA with 15 variables is it better than 23...

28 January 2015 8,456 12 View