ACKNOWLEDGMENTS

                                                     ACKNOWLEDGMENTS

I avail the opportunity to bow my head before Allah Almighty in humility, THE CREATOR, Who has accepted me for this valuable hard struggle and bestoewed upon me cordial capability,physical potential faculty to complete this work inspite of my hardship. All praise to Allah, Lords of all the words and king of the Day of Judgment, who created knowledge to enlighten our dark paths and all esteems for his prophet MUHAMMAD (PBUH), who illuminates our minds with the external wisdom. The research report in your hands is the result of my day and night efforts, which I have made in order to complete this comprehensive, report.

I deem it great honors and privilege to record sense of gratitude and appreciation to my respected and worthy Supervisor,Sir Bakht Yawer Ali Khan, Institute of Pure and Applied Biology for his skillful and constant help, deep interest, and unfailing patient and gave me confidence to believe in myself which I never had before.

I feel great pleasure to express my deep sense of gratitude to Mam Seema Mehmood Director Institute of Pure and Applied Biology, BahuddinZakariya University Multan Pakistan.

I am deeply thankful to all my class fellows. Many thanks by heart to my sweet and sincere and well-wisher friends Salma Yasin, Mehwish Munir, Mahroosh Siddiquie and Khola Ahmad for their sincere cooperation and unforgettable company. I extand my thanks to all my research fellows.

I would like to thanks all my teachers epically Sir Ahsan Sattar and Sir Qamar Saeed for their polite behavior and their support.

Heartiest wishes, unending prayers and continuous support of my parents ( Munir Ahmad and Rubina Tbassum) have always been a source of encouragement for which I have no words to express my indebtedness to them

Faiza Munir