- In the anaphase of mitosis, many chromosome bridges were observed, some acentric fragments of chromosme lagged behind and were left in cytoplasm.
- The total cumulative dose for each groupwas 2.0 Gy. It was found that the types of chromosome aberrations were mainly dicentric abe-rrations and acentric fragments in single acute irradiation.
- This was mor obvious in the anaphase and telophase, especially in the former phase laggard chromosomes,chromosome bridges,acentric fragments and polypolar distrbution could be seen frequently.
- These bullets fragment on impact.