10.22376/ijpbs.2019.10.1.p1-12 Volume 2 Issue 2 2011 (April - June) Iron deficiency is a worldwide problem and is, in general, more frequent than its excess. lessThan i greaterThan Nigella sativa lessThan /i greaterThan may also act as an ROS scavenger and as a metal chelant. To examine these possibilities, we tested lessThan i greaterThan in vivo lessThan /i greaterThan the effect of lessThan i greaterThan Nigella sativa lessThan /i greaterThan (50 mg/kg b.wt.) against the genotoxicity of FeSO lessThan sub greaterThan 4. lessThan /sub greaterThan 7H lessThan sub greaterThan 2 lessThan /sub greaterThan O. Bone marrow cells were obtained from the rats using the technique described by Preston lessThan i greaterThan et al lessThan /i greaterThan . (1987). The results of treatments with lessThan i greaterThan Nigella sativa lessThan /i greaterThan indicated that it statistically significantly decreases the number of with aberrations induced by FeSO lessThan sub greaterThan 4. lessThan /sub greaterThan 7H lessThan sub greaterThan 2 lessThan /sub greaterThan O, but it cannot completely protect cells from damage. lessThan i greaterThan Nigella sativa lessThan /i greaterThan showed the most efficient anticlastogenic effect during simultaneous treatment with FeSO lessThan sub greaterThan 4. lessThan /sub greaterThan 7H lessThan sub greaterThan 2 lessThan /sub greaterThan O. The result further strengthened the findings about the protective and antigenotoxic properties of lessThan i greaterThan Nigella sativa lessThan /i greaterThan . Nuzhat Parveen And G. G. H. A. Shadab Nigella sativa; Chromosomal aberrations; Ferrous sulfate; Genotoxicity. 470-477