Which of following part of bacteria has ability to self replicating

Which of following part of bacteria has ability to self replicating

بیکٹیریا کے مندرجہ ذیل میں سے کون سا حصہ خود نقل کرنے کی صلاحیت رکھتا ہے۔
Explanation

Bacteria are microscopic, single-celled organisms that thrive in diverse environments.