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प्रश्न
Although a prokaryotic cell has no defined nucleus, yet DNA is not scattered throughout the cell. Explain.
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उत्तर
DNA is negatively charged , positively charged proteins , hold it in places, in large loops (in a region termed as nucleiod) Detailed Answer : In prokaryotic cell, the DNA is not scattered throughout the cell but present in the form of a membrane less structure called nucleoid. The prokaryotic cells uses a specific mechanism to pack the genetic material tightly into this region. The prokaryotic cello do take up a measure against this by folding the fibres and forming genophore.
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संबंधित प्रश्न
Differentiate between Euchromatin and Heterochromatin.
Which of the following is the CORRECT statement with respect to formation of nucleosome?
A typical nucleosome "bead" is made up of ______.
The additional set of proteins required for packaging of chromatin at higher level are called ______.
A stretch of euchromatin has 200 nucleosomes. How many bp will there be in the stretch and what would be the length of the typical euchromatin?
Plasmid has been used as vector because ______.
Which process occurs in the regulation of gene expression in prokaryotes but does not occur in the regulation of gene expression in eukaryotes?
______ are the amino acids of histones.
Which one of the following statements about Histones is wrong?
Replication of DNA in eukaryotes is initiated by ______.
