In order to investigate the extent effect in other organs,
chromosomal complement was studied in kidney tissues.
For all injected fish and their control, the cytological
examination showed diploid number of T. zillii
chromosomes (2n=44). Also, no differences in the rate of
structural or numerical chromosomal aberrations were
detected in all injected fish with different doses of shark
DNA and their control (Figure 1). The same findings were
reported by El-Fiky and Mehana (1998); El-Zaeem
(2004); Hemeida et al. (2004).