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प्रश्न
Distinguish between heterochromatin and euchromatin. Which of the two is transcriptionally active?
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उत्तर
| Heterochromatin | Euchromatin |
| DNA is highly packed in the chromosome. | DNA is loosely packed in the chromosome. |
| It has a high density of DNA. | It has a low density of DNA. |
| It is only contained in Eukaryotes. | Prokaryotes and eukaryotes both contain euchromatin. |
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संबंधित प्रश्न
How are the following formed and involved in DNA packaging in a nucleus of a cell?
(ii) Nucleosome
(iii) Chromatin
Name the transcriptionally active region of chromatin in a nucleus.
Although a prokaryotic cell has no defined nucleus, yet DNA is not scattered throughout the cell. Explain.
Short Answer Question:
Write a short note on DNA packaging in the eukaryotic cell.
Write a note on the packaging of DNA in Eukaryotes.
Explain the formation of a nucleosome.
Flagella are present both in prokaryotic and eukaryotic cells, however, they differ in:
Which one of the following is not considered as part of the endomembrane system?
Which process occurs in the regulation of gene expression in prokaryotes but does not occur in the regulation of gene expression in eukaryotes?
During translation initiation in prokaryotes, a GTP molecule is needed in:
Watson and Crick proposed the 'Double Helix' structure of DNA based on data produced by ______
Which one of the following statements about Histones is wrong?
What would happen if histones were to be mutated and made rich in acidic amino acids such as aspartic acid and glutamic acid in place of basic amino acids such as lysine and arginine?
Replication of DNA in eukaryotes is initiated by ______.
Distinguish between heterochromatin and euchromatin with reference to staining property and activity.
How many base pairs are contained in E. coli DNA?
What diameter is achieved after the circularisation step in prokaryotic DNA packaging?
Which of the following are core histones that form part of the histone octamer?
What is the diameter of the nucleosome fibre (beads-on-string structure)?
Which locations in the eukaryotic nucleus typically contain heterochromatin?
