The following picture depicts which of the following changes in chromosome structure?

• A. Deletion
• B. Duplication
• C. Inversion
• D. Translocation

Answer: (C)

Verified step by step guidance

1. Step 1: Understand the types of chromosome structural changes. Deletion involves loss of a chromosome segment, duplication involves repetition of a segment, inversion involves a segment being flipped in orientation, and translocation involves segments moving between nonhomologous chromosomes.
2. Step 2: Identify the key feature of an inversion: a chromosome segment breaks off, flips 180 degrees, and reattaches in the reverse orientation within the same chromosome.
3. Step 3: Examine the picture carefully to see if a segment of the chromosome appears reversed in order but remains on the same chromosome, which is characteristic of an inversion.
4. Step 4: Rule out deletion if no segment is missing, duplication if no segment is repeated, and translocation if no segment has moved to a different chromosome.
5. Step 5: Conclude that the depicted change is an inversion because the chromosome segment is reversed in orientation but remains part of the same chromosome.