[1
]Department of Biological Sciences, Bayero University, P.M.B. 3011, Kano, Nigeria
[2
]Department of Pure and Industrial Chemistry, Bayero University, P.M.B. 3011, Kano,
Nigeria
[3
]Department of Human Anatomy, Faculty of Medicine, Bayero University, P.M.B. 3011,
Kano, Nigeria