alleryStart learning →Where does a prokaryote keep its single circular chromosome?
AInside a membrane-bound nucleus
BWithin a ribosome in the cytoplasm
CAttached to an internal organelle
DIn a cell region called the nucleoid
Answer & Solution
Correct answer: D. In a cell region called the nucleoid
1. Prokaryotes lack organelles and other internal membrane-bound structures.
2. With no nucleus, the single chromosome of circular double-stranded DNA sits in a region called the nucleoid.
3. Ribosomes build proteins and do not store the chromosome.
4. Since prokaryotes have no internal organelles, nothing can be anchored to one.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 22 "Prokaryotes: Bacteria and Archaea", section 22.2 Structure of Prokaryotes_
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