0
The portion of a prokaryotic cell where DNA is physically organized but not enclosed in amembrane.
Answer
The nucleoid (meaning nucleus-like) is an irregularly-shaped region within the cell of prokaryotes which has nuclear material without a nuclear membrane and where the genetic material is localized. The genome of prokaryotic organisms generally is a circular, double-stranded piece of DNA, of which multiple copies may exist at any time. The length of a genome widely varies, but generally is at least a few million base pairs. Storage of the genome within a nucleoid can be contrasted against that within eukaryotes, where the genome is packed into chromatin and sequestered within a membrane-enclosed organelle called the nucleus.
A genophore is the DNA of a prokaryote. This is commonly referred to as a prokaryotic chromosome. The term chromosome is misleading for a genophore because the genophore lacks chromatin. The genophore is compacted through a mechanism known as supercoiling, whereas a chromosome is compacted via chromatin. The genophore is circular in most prokaryotes, and linear in very few. The circular nature of the genophore allows replication to occur without telomeres. Genophores are generally of a much smaller size than Eukaryotic chromosomes. A genophore of a true organism can be as small as 580,073 base pairs (Mycoplasma genitalium). Many eukaryotes (such as plants and animals) carry genophores in organelles such as mitochondria and chloroplasts. These organelles are very similar to true prokaryotes.
VisualizationThe nucleoid can be clearly visualized on an electron micrograph at high magnification, where, although its appearance may differ, it is clearly visible against the cytosol. Sometimes even strands of what is thought to be DNA are visible. By staining with the Feulgen stain, which specifically stains DNA, the nucleoid can also be seen under a light microscope. The DNA-intercalating stains DAPI and ethidium bromide are widely used for fluorescence microscopy of nucleoids.
What else can I help you with?
Is a nucleolus found in bacteria cells?
Bacteria does not have a nucleus. The DNA material in not enclosed by a membrane, but is rather free floating in the bacteria cell but is refereed to as a nucleoid region. While I am unsure if bacteria have a nucleolus, I do know that bacteria do have ribosome which are produced by the nucleolus. Hope this leads you in the right direction. YES. because bacteria cells do have ribosomes and the nucleolus produces them.
Which cell is the nucleolus located?
Do you mean nucleolus? If so, all Eukaryotic cells like plant and animal cells have a nucleolus. but most bacterial cells such as Prokaryotes have a nucleoid which is different from a nucleus or nucleolus.
Where is the nucleolus found in a plant's cell?
Yes. [Bacteria (eubacteria and archaebacteria) don't.] Yes, there is a nucleus in a plant cell. Plant cells have some similar characteristics as the animal cell, like having a nucleus. The nucleus contains the genetic code, encoded in the DNA. The nucleus has a nuclear membrane to protect it. If the cell is like a factory producing proteins, then the nucleus is like the managers office and the central computer - it has all the information and blueprints for the proteins that have to be manufactured. However the question is "Is a nucleolus found in plant cells?" The nucleolus and the nucleus are not the same. The nucleolus is a specialised region inside the nucleus, which contains the genetic code for ribosomes. Ribosomes are special structures which make proteins. So the answer is yes, a nucleolus is found within the nucleus of a plant cell.
What Is A Nucleolus Of A House?
There is no specific "nucleolus of a house." The nucleolus is a structure found within the nucleus of a cell that is involved in the production of ribosomes. In a house, there is no equivalent structure as houses do not have cells or nuclei.
How is nucleolus related ro the a part of the human body?
The nucleolus is a structure found inside the nucleus of the cell. It plays a crucial role in the production of ribosomes, which are essential for protein synthesis. In the human body, the nucleolus is present in most cells that actively produce proteins.
Is nucleolus found in animal and planet cells?
Yes. All eukaryotes have a nucleolus.
Is the nucleolus found in plant and animals cells?
The nucleolus if found in both animal and plant cells.
Do all cells need nucleolus?
Not all cells need a nucleolus. For example, bacterial cells do not have a nucleolus. A nucleolus is a dense body within the nucleus which is where ribosomes are formed. As viral cells do not create ribosomes, they do not need a nucleolus either...
Is nucleolus found in cells?
yes
Is a nucleolus found in a plant or animal cells?
It is found in both.
Is nucleolus a plant?
No, a nucleolus is found within the nucleus of a cell.
Are the nucleolus found in the animal cell or plant?
The nucleolus is found in animal cells because that is the small wall that protects the outside of the nucleus.
Is nucleolus found in both animal and plant cells?
Yes.
A nucleous of a cell?
Membrane is a nucleolus of cells. This is enclosed organelle found in eukaryotic cells.
Is a nucleolus found in an animal cell or in a plant cell?
good timing i am doing this in science class nucleolus is found in both plant and animal cells!
Is a nucleolus found in animal cells?
Yes it is as well as a plant cell
Is the nucleolus found in plant cells?
Yes, plant cells have nuclei.
