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Antibiotic Susceptibility Test

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This test for testing number of antibiotics against certain organism to find the best one and the most effective on this organism.

Steps:
-Take a swap from the colony by a sterile wire loop and culture it on Muller-hinton agar.
-Leave it incubated for 24 hours at 37ºC.

Result:
You notice now the larger clear zone around an antibiotic means that this antibiotic is the best.
See Samples below......Read more

White blood corpuscles leucocytes

Number:
- Number of WBC's ranges between 4000 - 11000 corpuscles / mm^2, and in new born the total WBC's are 16000 / mm^2 of the blood.

Shape:
- Spherical.

Size:
- Vary in size and ranges from 5.2 µ.

Color:
- colorless or greyish-white.

Function:
- Phagocytosis of toxin,bacteria and dead cells.
- Production of proteolytic enzymes ( Pepsin & trypsin ).
- Antibody formation.

Types of Leucocytes:
- Granulocytes: Neutrophil , Eosinophi...Read more

Polymerase Chain Reaction (PCR)

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1. ÇáÈÇÏÆÇÊ Primers æåí ÚÈÇÑÉ Úä äíæßáæÊíÏÇÊ ÞáíáÉ Oligonucleotides18 – 20 ÃÓÇÓ ÂÒæÊí ÞÇÏÑÉ Úáì Ç...Read more