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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
Describe the structure of a nucleosome.
Although a prokaryotic cell has no defined nucleus, yet DNA is not scattered throughout the cell. Explain.
AUG codon gives ________ & ________ amino acids in prokaryotes & Eukaryotes respectively.
Draw a neat and labelled diagram of the Nucleosome.
Repeating units of chromatin are known as ____________.
In prokaryotes, the enzyme RNA polymerase recognizes the promoter by its ______.
The length of DNA segment having 44 base pairs is ______
The net electric charge on DNA and histones is ______.
Nucleosome core is made of ______.
Histones are rich 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:
Define the Transfection.
The non-condensed, light stained and transcriptionally active segments of chromosomes are called ______.
Who among the following has developed technique to synthesize artificial mRNA with known repeated sequences of two or three nucleotides?
Statement I: In prokaryotes, the positively charged DNA is held with some negatively charged proteins in a region called nucleoid.
Statement II: In eukaryotes, the negatively charged DNA is wrapped around the positively charged histone octamer to form nucleosome.
In the light of the above statements, choose the correct answer from the options given below:
