alleryStart learning →In a prokaryotic cell, what is the central region in which the DNA resides called?
AThe nucleolus
BThe nucleoid
CThe nucleosome
DThe nuclear pore
Answer & Solution
Correct answer: B. The nucleoid
1. Prokaryotes lack a membrane-bound nucleus, so their DNA sits in an open central region.
2. That region is called the nucleoid.
3. The nucleolus is a eukaryotic nuclear substructure and a nucleosome is DNA wound on histones, so neither fits a bacterium.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 15 "Genes and Proteins", section 15.2 Prokaryotic Transcription_
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