Genotoxic effect of the carbaryl insecticide (Sevin) on the grass carp Ctenopharyngdon idella (Val.). Effect of carbamatel insecticide (Sevin) on Cytological and Histological structure of the kidney of grass carp Ctenopharyngdon idella (Val.). Cytological and cytochemical changes in the liver of the grass carp Ctenopharyngdon idella (Val.) in sevin polluted water. The Evolution History of the Acanthamoeba and the Identification of Eight New 18S rRNA Gene Sequence Types. Small-Subunit Ribosomal RNA Gene Identification Of The Human Pathogen Schistosoma sp. In Egypt. Using Restriction-Site Variation of PCR-Amplified 18S Ribosomal RNA Gene for Phylogenetic Analysis of Hymenolepis spp. Molecular Identification of Three Argas Species Using Polymerase Chain Reaction (PCR) Amplification and Restriction Analysis of the Small-Subunit Ribosomal RNA Gene. Molecular Identification of Biomphalaria alexandrina and Bulinus truncatus using PCR-RFLP of Actin Gene. Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) Analysis of Ribosomal DNA proved to be Useful for Differentiating Seven Strains of Acanthamoeba castellanii. Restriction Fragment Length Polymorphisms (RFLPs) Of The Small-Subunit Ribosomal DNA As A Tool For Identification Of Tilapia spp. Advantages of Using Mitochondrial 16S rDNA Sequences to Classify Clinical Isolates of Acanthamoeba. Phylogenetic relationship among the freshwater snails Melanoides and Cleopatra spp. using Mitochondrial COI gene. Characterization of Fasciola hepatica and Fasciola gigantica by Polymerase Chain Reaction and Restriction Endonucleases Digestion of the Nuclear Small Subunit Ribosomal RNA Gene. Phenotypic Plasticity of Some Land Snails Determined by PCR/RFLP of SrDNA. The electromagnetic spectrum induces mutation in mitochondrial NADH ubiquinone oxidoreductase subunit gene. Do Molecular Markers Predict the Electromagnetic Field Treatment of Cancer Through p53 Suppressor Gene? Using ETS1Gene as a Marker for Detecting and Treatment Tumor by Electromagnetic Fields. DNA Riboprinting and Biochemical Studies on the Effect of Exposure to Pulsed Electromagnetic Field on Rates. Identification of some actinomycete species by restrication endonuclease analysis of an amplified the 16SrRNA gene DNA riboprinting analysis of Tilapia species and their hybrids using restriction fragment length polymorphisms of the small subunit ribosomal DNA. Preparation of 99m Tc-Carnosine and 99mTcO-(V)-DMSA Complexes, Biological Distribution and Estimation of Their Gene Anti-Polymorphisms Induced by γ-Irradiation. Identification of Athletic Human Growth Hormone Gene Polymorphisms. Mitochondrial NADH Dehydrogenase gene (mtND2) Phylogeny of Egyptian Tilapia species. A Study on Molecular Biology of Tilapia Species and Their Hybrids in the River Nile, Egyp. Comparative Study on Electrophoretic Protein Characterization of Tilapia Species in The River Nile, Egypt. Molecular Biological Studies on the Effect of the Electromagnetic Fields on ETS-1 Oncogene. Molecular identification and Phylogeny of the two freshwater fish Bagrus bajad and Bagrus docmac in Egypt. Riboprinting Diagnosis for the Mutagenic Effect of Malathion on BChE Gene of Mice Embryo. Effect of Chitin synthesis inhibitors (flufenoxuron) on some biological and biochemical aspects of the cotton leaf worm Spodoptera littoralis Bosid (Lepidoptera: Noctuidae). Radio-protective chelating agents against DNA oxidative damage. Administration of Three Natural Products as Protective Agents Against The Genotoxic And Cytotoxic Effect of Methotrexate in Mice (Mus Musculus). Effect of Dietborne Cu and Cd on Body Indices of Nile Tilapia (Oreochromis niloticus) with Emphasis on Protein Pattern. Effect of Dietborne Metals on Body Indices of Nile Tilapia (Oreochromis niloticus) With Emphasis on Protein Pattern. Molecular Diagnostic Studies on The Mutagenicity of an Antiepileptic Drug in Mice Fetus. The Activity of Some Detoxification Enzymes in Spodoptera Littoralis (Boisd.) Larvae (Lepidoptera – Noctuidae) Treated With Two Different Insect Growth Regulators. Biological and molecular aspects of the insect growth regulator lufenuron on Spodoptera littoralis (Bosid) (Lepidoptera:Noctuidae). Hypoglycemic Effect of Lupin Alkaloids and/or Rosiglitazone in Pregnant Diabetic Rats in Relation to Atherogenic Index. Molecular cloning and sequence analysis of vira-like chitinase gene from the cotton leaf worm, Spodoptera littoralis Bosid (Lepidoptera: Noctuidae), treated with two insect growth regulators. HLA-DQA1 exon2 gene SNP interactions and the association with type 1 diabetes mellitus in Egypt High dietborne Cu and Cd induced genotoxicity of Nile tilapia (Oreochromis niloticus) THE PROTECTIVE EFFECT OF DIETARY SUPPLEMENTS AGAINST THE CYTOGENOTOXIC EFFECT OF CYCLOPHASMIDE IN MICE (MUSMUSCULUS)