Do ancient karyotic cells have chromosomes? There are no chromosomes inside a prokaryotic cell

Ancient karyotic cells are the cells that make up prokaryotes and generally do not have chromosomes.

There are no chromosomes.

Because: 1. There is no nuclear membrane between the nucleoplasm and the cytoplasm, so it is resistant to the unformed nucleus;

2. The genetic material is a circular double-helix DNA filament that does not bind to histones, and does not constitute a chromosome (some prokaryotic organisms have smaller plasmid DNA that can enter and exit cells outside their main genome).

Prokaryotic cells do not have chromosomes.

Prokaryotic cells are the cells that make up prokaryotes. The main characteristic of this type of cell is that there is no nucleus bounded by a nuclear membrane, and there is no nucleolus, only a nucleoid. Evolutionary status is low.

Organelles have only ribosomes and have a cell wall that is different in composition from eukaryotic cells. Cells are smaller, have no shaped nucleus, no chromosomes, and DNA does not bind to proteins.

Nucleomimetic organisms are found in prokaryotes and are nuclei that are not coated by a nuclear membrane and have no chromosomes, only a circular DNA molecule located in an irregularly shaped region with indistinct borders. Contains genetic material. The nucleic acids inside are circular DNA in the form of a double-strand helix with multiple identical replicates at the same time.

Do prokaryotes have chromosomes There are only regions of DNA concentration, i.e., nucleoid, and no chromosomes, which are peculiar to eukaryotic cells.

Do prokaryotes have chromatin? No, DNA is wound around histones to form chromosomes, chromosomes are condensed to form chromatin, and the genome of prokaryotes is a large circular DNA molecule (without protein binding) that cannot be called chromosomes or chromatin.

Does prokaryotes have chromosomes No, how do prokaryotes destroy chromosomes without a nucleus? Chromosomes are inside the nucleus, and the genetic material of the prokaryotes is exposed to the nucleoid.

What are the similarities and differences between the chromosomes of prokaryotes and eukaryotes Strictly speaking, prokaryotes do not have chromosomes! But for the sake of convenience, people also call it E. coli chromosomes! When there are actually no chromosomes!

The difference is that the genes of eukaryotes have histones, non-histones are coated to form nucleosomes, and prokaryotes do not! Then there is the genetic structure, the prokaryotes are polycistronic organisms, and the eukaryotic is monocistron.

Do prokaryotes have no dyeing liquid bonds? Do eukaryotes have chromosomes 1The definition of chromosomes is the combination of DNA molecules and histones, and although bacteria have DNA molecules, they are not bound to histones and cannot be called chromosomes.

2.All eukaryotes have chromosomes. Eukaryotes are organisms that have a formed nucleus in which chromosomes are present.

It's not the same. Prokaryotic cells: large subunit 23s, 5srrna, small subunit 16srrna, eukaryotic cells: large subunit 28s, small subunit 18srrna1, composition is different:

Prokaryotic cells: Composed of two subunits, 50s and 30s.

Eukaryotic cells: Composed of two subunits, 60s and 40s.

2. The coefficients are different

Prokaryotic cells: sedimentation coefficient 70s, not attached to endoplasmic reticulum.

Eukaryotic cells: sedimentation coefficient of 80s, basically attached to the endoplasmic reticulum.

3. Different volumes:

Prokaryotic cells: Ribosomes are smaller.

Eukaryotic cells: The nucleus is deficient in spinal glycosomes, which are large in size.

Eukaryotic cells are made up of chromosomes, prokaryotic cells do not have a formed nucleus, so there are no chromosomes, prokaryotic cells have nucleoids, and the genetic material is all on the nucleosomes, so there are no chromosomes.

Chromosomes are made up of DNA and proteins, prokaryotic cells do not have a nucleus, only nucleoid, and there are only DNA molecules in the nucleoide, so prokaryotic cells do not have chromosomes.

Chromosomes are present in the nucleus, whereas prokaryotic cells do not have a nuclear membrane to coat the typical nucleus, so chromosomes are not present in prokaryotic cells.