Which chromosomal change is represented?

The right answer is insertion.

The insertion is, in genetics, the contribution of genetic material on a chromosome. This intake usually comes from another chromosome that is deletions.

Insertion can lead to changes in gene function: encoding nucleic bases in a gene makes it longer and shifts the reading of its data, which can modify its functioning in a harmful way, especially if the insertion occurs on the exon (the fragments of an RNA primary presence in cytoplasmic RNA after splicing).

what's the rest of the question

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