| Purification and characterization of $beta$ -Galactosidase from the streptococcus thermophilus strain RSKK 667 | Ressa REJAEE, Ufuk GÜNDÜZ | 109–123 |
| The effect of a $CO_2$ -saturated $CaCl_2$ solution on the transformation efficiency of Escherichia coli JM109 with a M13 derivative | Ali Osman BELDÜZ, Zihni DEMİRBAĞ, Hülya COŞKUNÇELEBİ, Sabriye DÜLGER | 133–139 |
| Experimental embryology in Xenopus laevis | Tuncay ÖZGÜNEN, Ayşe KENDİRCİ, Seçil BİNOKAY, Ayper BOĞA | 141–148 |
| A topological study of certain chemicals eliciting the alarm response in Iridomyrmex pruinosus | Lemi TÜRKER | 149–152 |
| Topological effects on the activitiy of compounds acting as alarm pheromones of Pogonomyrmex badius | Lemi TÜRKER | 153–157 |
| An improved method for embling production in pistachio, Pistacia vera L. using | Ahmet ONAY, Oktay NAMLI, M.Ziya FIRAT | 159–174 |
| Effect of gibberellic acid on the alterations caused by drought stress in the genome of cotton (Gossypium hirsutum L.) seedlings | Kamil COŞKUNÇELEBİ, Ramiz T.ALİYEV, Osman BEYAZOĞLU | 175–179 |
| In vitro virucidal effect of Sanicula europaea L. extract | Ali KARAGÖZ, Nazlı ARDA, Avni KURU, Kadir TURAN, Yener OKATAN | 181–188 |
| A numerical taxonomic study of Vespidae (Hymenoptera) species from south-east anatolia in Turkey | Cengizhan ÖZBAY, Hasan AKBAYIN | 189–196 |
| Cytological investigations of certain species of vicia L. | Nükhet AKPINAR, Rahmi BİLALOĞLU | 197–207 |