1. Introduction
Cancer is a multifactorial disease arising from the accumulative
effects of gene products of mutant proto-oncogenes,
tumor suppressor genes and DNA repair genes, leading to
the uncontrolled growth and spread of cancer cells [1,2]. There
are over 100 different types of cancer, and each is classified by
the type of cell that is initially affected, and these include cervical
cancer, skin cancer, leukemia, lung cancer, prostate cancer,
and so on