A chromosome's gene sequence that was ABCDEFG before modification and ABCDCDEFG afterward is an example of a(n) ____.
A)inversion
B)deletion
C)duplication
D)translocation
E)crossing over

Question

Quizplus · Accepted Answer

The gene sequence ABCDEFG before modification had a duplication of the letter C, resulting in the sequence ABCDCDEFG. Inversions involve a reversal of the order of genes, deletions involve the loss of a section of genes, translocations involve the exchange of sections of genes between non-homologous chromosomes, and crossing over involves the exchange of sections of genes between homologous chromosomes during meiosis. None of these processes would result in the specific modification described in this question.

A Chromosome's Gene Sequence That Was ABCDEFG Before Modification and ABCDCDEFG