1 . 'Mutation' is a process-
- A. in which due to genetic changes new forms of structures are developed
- B. when a person is unable to speak because of facial paralysis
- C. when people refuse to obey orders
- D. in which the body is damaged severely
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ক ইউনিট (2010-2011) || ঢাকা বিশ্ববিদ্যালয় || 2010
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