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থিম নির্বাচন

আপনার পছন্দের থিম বেছে নিন।

"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 refuseto obey orders
D. in which the body is damaged severely
সঠিক উত্তরঃ A. in which due to genetic changes new forms of structures are developed
Explanation: