Chromosomes that undergo duplication have segments of their DNA repeated while deletion happens when chromosomes have a portion of their sequence removed from he sequence. These are believed to happen side by side when there is unequal crossover of chromosomes during cell division.
When a chromosome has either a duplication or a deletion, the chance that the mutation will be harmful are a function of:
A. its location, if it occurs in a germ-line cell, it will be more harmful than if it occurs in a somatic cell.
B. its size, the larger the duplication or deletion, the greater the chance of harm.
C. its position on the chromosome, if it occurs at the tip of a long arm, it is likely to be less harmful than if it occurs at the tip of a short arm.
D. None of the other answer options is correct.
E. its size, the smaller the duplication or deletion, the greater the chance of harm.
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