Question

one half of a duplicated chromosome
chromatid
centrioles
chromatin
centromere

Explanation:

To solve this, we recall the definitions of each term:

• Chromatid: One half of a duplicated chromosome.
• Centrioles: Organelles involved in cell division (not related to chromosome structure).
• Chromatin: Uncondensed DNA - protein complex (not a half of a duplicated chromosome).
• Centromere: The region where sister chromatids are joined (not a chromatid itself).

So the term that matches "One half of a duplicated chromosome" is chromatid.

Answer:

chromatid