Table of Contents
What stores DNA in eukaryotes?
nucleus
The nucleus is particularly important among eukaryotic organelles because it is the location of a cell’s DNA. Two other critical organelles are mitochondria and chloroplasts, which play important roles in energy conversion and are thought to have their evolutionary origins as simple single-celled organisms.
What stores and protects DNA in a cell?
It also houses DNA (deoxyribonucleic acid), the cell’s hereditary material. The nucleus is surrounded by a membrane called the nuclear envelope, which protects the DNA and separates the nucleus from the rest of the cell. Plasma membrane.
What stores and protects the genetic information in a eukaryotic cell?
Eukaryotic DNA is linear, associated with histone proteins and in packed condition form chromosome. Chromosomes are stored within double membrane bound organelle called the Nucleus .
Which is not true for DNA in prokaryotes?
Genetic material of prokaryotic cells is carried on a single circular of DNA which is attached to the cell membrane and in direct contact with the cytoplasm. There is no envelope membrane, so there is no true nucleus, and prokaryotes lack histone protein but simply a prokaryotic DNA known as a nucleoid.
Are self replicating extrachromosomal DNA?
Plasmids are self-replicating extrachromosomal DNA molecules found in Gram-negative and Gram-positive bacteria as well as in some yeast and other fungi. Although they encode specific molecules required for initiation of their replication, plasmids rely on host-encoded factors for their replication.
Where is the genetic material found in eukaryotes?
The genetic material of both eukaryotic and prokaryotic cells is found in the cytoplasm and therefore it is impossible to differentiate between them based solely on their DNA. The genetic material of a eukaryotic cell is found floating freely in the cytoplasm but protected by the plasma membrane of the cell.
Where does DNA packaging occur in a prokaryotic cell?
DNA Packaging in Eukaryotes and Prokaryotes. When comparing prokaryotic cells to eukaryotic cells, prokaryotes are much simpler than eukaryotes in many of their features (Figure 1). Most prokaryotes contain a single, circular chromosome that is found in an area of the cytoplasm called the nucleoid.
Where is the chromosome located in an eukaryotic cell?
A eukaryote contains a well-defined nucleus, whereas in prokaryotes, the chromosome lies in the cytoplasm in an area called the nucleoid. In eukaryotic cells, DNA and RNA synthesis occur in a separate compartment from protein synthesis.
Where does DNA and RNA synthesis occur in eukaryotes?
Figure 1. A eukaryote contains a well-defined nucleus, whereas in prokaryotes, the chromosome lies in the cytoplasm in an area called the nucleoid. In eukaryotic cells, DNA and RNA synthesis occur in a separate compartment from protein synthesis.