Biology, asked by timesfeedback, 9 months ago

Genetic material of prokaryotes are called ___.
Options:
(1.) Nucleoid
(2.) Meosomes

Answers

Answered by sukhman256

Explanation:

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$(1)$ $Nucleoid$

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Answered by brainstorm15

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. The length of the DNA chromosome is very large compared to the dimensions of the cell, and so must be compacted to fit. In contrast to the nucleus of a eukaryotic cell, it is not surrounded by a nuclear membrane. Instead, the nucleoid forms by condensation and functional arrangement with the help of chromosomal architectural proteins and RNA molecules as well as DNA supercoiling. The length of a genome widely and a cell may contain multiple copies of it.

There is not yet a high-resolution structure known of a bacterial nucleoid, however key features have been researched in Escherichia coli as a model organism. In E. coli, the chromosomal DNA is on average negatively supercoiled and folded into plectonemic loops, which are confined to different physical regions, and rarely diffuse into each other. These loops spatially organize into megabase-sized regions called macrodomains, within which DNA sites frequently interact, but between which interactions are rare. The condensed and spatially organized DNA forms a helical ellipsoid that is radially confined in the cell. The 3D structure of the DNA in the nuceoid appears to vary depending on conditions and is linked to gene expression so that the nucleoid architecture and gene transcription are tightly interdependent, influencing each other reciprocally.

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Genetic material of prokaryotes are called ___. Options: (1.) Nucleoid (2.) Meosomes

Answers

Genetic material of prokaryotes are called ___.
Options:
(1.) Nucleoid
(2.) Meosomes