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Polymerase Chain Reaction (PCR)

ÊÝÇÚá ÇáÈæáíãÑíÒ ÇáãÊÓáÓá


ÊÝÇÚá ÇáÈæáíãÑíÒ ÇáãÊÓáÓá

ÊÞæã ÝßÑÉ ÊÞäíÉ Çá PCR Åáì ÇáÞíÇã ÈÊÖÎíã ÌÒíÆÇÊ ÞáíáÉ ãä ÇáÍãÖ Çáäææí DNA¡ ÈÚÏ ÇÓÊÎáÇÕå ãä ÎáÇíÇ Ãæ ÓæÇÆá ÇáÌÓã æÈÇáÊÇáí ÇáÍÕæá Úáì ßãíÇÊ ßÈíÑÉ ãäå æÇáÊì ÊãßääÇ ãä ÅÌÑÇÁ ÇáÊÍáíá Úáíå. íãßä ÇÚÊÈÇÑ ÊÞäíÉ PCR ÊÑÌãÉ ãÈÓØÉ áÚãáíÉ ÇäÊÓÇÎ ÇáÍãÖ Çáäææí DNA ÃËäÇÁ ÇáÇäÞÓÇã ÇáÎáæí.æáßí íÊã åÐÇ ÇáÇäÊÓÇΡ áÇ ÈÏ ãä ÊæÝÑ ãæÇÏ ãÚíäÉ ÊÓÇÚÏ Úáì Ðáß:

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

Entamoeba Histolytica

ÇáÇäÊÇãíÈÇ åíÓÊæáíÊíßÇ



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þÇáÃãíÈÇ åí ÚÏæì ØÝíáíÉ ááÃãÚÇÁ ÇáÛáíÙÉ¡ ÊÊÓÈÈ Ýí ÍÏæËåÇ ÇáØÝíáíÇÊ ÇáãÊÍæáÉ (ÇäÊÇãæíÈÇ åÓÊæáæíÊßÇ( Entamoeba Histolytica ) æåæ ØÝíá æÍíÏ ÇáÎáÇíÇ íÊßÇËÑ ÏÇÎá ÇáÇãÚÇÁ æíÊÍæá Çáì ÍæíÕáÉ ÈåÇ äæíÇÊ æÊÓÈÈ ÇáÏíÓæäÊÇÑíÇ ÇáÇãíÈíÉ æåì ãä ÇÎØÑ ÇáØÝíáíÇÊ áÇä ÚáÇÌÉ íÇÎÐ ÝÊÑÉ ØæíáÉ ÝÚäÏ ÊäÇæá ÇáÏæÇÁ ÊÞæã ÇáÇäÊÇãíÈÇ ÈÒíÇÏÉ ÞæÉ ÇáÍæíÕáÉ ÇáãÍÇØÉ ÈåÇ áãÞÇæãÉ ÇáÏæÇÁ áÐáß ÝÇä ÇáÏæÇÁ ÞÏ íÝÔá Ýì ÇáÞÖÇÁ ÚáíåÇ.



þØÑÞ ÇáÇÕÇÈÉ ÈÇáÇãíÈÇ

ãä Çåã ÇáÇÓÈÇÈ:

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Gram stain procedure

ØÑíÞÉ ÕÈÛÉ ÌÑÇã (ÕÈÛÉ ÛÑÇã)

This stain for differentiate between G +ve bacteria (which accept staining) and G -ve bacteria (which not accept staining).

Steps:
-Prepare your clear slide and put one drop of normal saline.
-Take specimen from the colony and mix it well with normal saline.
-Leave for dryness on air then fix it on burner.
-Then pour Crystal Violet stain on the slide and leave it for 1 minute.
-Wash gently with water.
-Then pour Iodine stain on the slide and leave it for 1 minute.
-Wash gently w...Read more