how is dna protected inside a cell ?
how is nucleic acid protected in a prokaryotic and eucaryotic cell?
links would be appreciated
DNA is protected inside a cell through multiple mechanisms, both in prokaryotic and eukaryotic cells.
In prokaryotic cells, DNA is protected by being localized in the nucleoid region, which is a condensed area of the cytoplasm where the DNA is aggregated. Additionally, DNA in prokaryotes is associated with proteins called histones that help protect and organize the DNA structure.
In eukaryotic cells, DNA is protected in a more complex manner. The DNA is wrapped around proteins called histones to form structures called nucleosomes. These nucleosomes further coil and compact to form chromosomes. The DNA is stored inside the cell nucleus, which provides an additional layer of protection.
Moreover, both prokaryotic and eukaryotic cells have mechanisms to protect DNA from damage caused by various factors, such as UV radiation, chemicals, and reactive molecules. These protective mechanisms include DNA repair enzymes that identify and correct errors or damage in the DNA sequence.
For further reading and detailed information, you can check the following links:
1. How DNA is protected in prokaryotic cells:
- Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6298025/
2. DNA protection mechanisms in eukaryotic cells:
- Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4482181/