Question

Undefined nuclear region of a prokaryotic cell containing only nucleic acids is called as a _______

• A. Nucleoid
• B. Gas vacuoles
• C. Nucleosome
• D. Chromatin fibre

Answer 1

Answer: (A)

The nucleoid (meaning nucleus-like) is an irregularly shaped region within the cell of a prokaryote that contains all or most of the genetic material. In contrast to the nucleus of a eukaryotic cell, it is not surrounded by a nuclear membrane. In organisms like bacteria the nuclear region of cell may be poorly defined due to absence of a nuclear membrane.

Hence the correct option is A.