Deletions occur most often in chromosomal fragments? A) Of polytene chromosome B) With inversion C) Without centromere D) With centromere Related MCQs: Control unit of a digital computer is often called the? Students who are hyperactive are most often medicated using? Volcanic eruptions occur due to the conversion of rocks in the deeper layers of the earth’s crust to a molten state of? A type of malware often disguised as legitimate software is: