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प्रश्न
Differentiate between Heterochromatin & Euchromatin.
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उत्तर
| No. | Heterochromatin | Euchromatin |
| 1. | In eukaryotic cells, some segments of chromonema/ chromosome during interphase and early prophase remain in a condensed state. These regions constitute heterochromatin. | The regions of chromonema which are in a non-condensed state constitute euchromatin. |
| 2. | It is genetically and transcriptionally inactive. | It is genetically and transcriptionally very much active and fast replicating. |
| 3. | It stains strongly and appears dark. | Euchromatic regions stain light. |
संबंधित प्रश्न
How are the following formed and involved in DNA packaging in a nucleus of a cell?
(ii) Nucleosome
(iii) Chromatin
The number of adenine molecules in a given DNA segment is 25 and the number of cytosine molecules is 45, the total number of nucleotides in the segment is _______________.
Explain the role of histones in forming a nucleosome.
The additional set of proteins required for packaging of chromatin at higher level are called ______.
The length of DNA can be calculated by ______.
Histone proteins are ______.
Flagella are present both in prokaryotic and eukaryotic cells, however, they differ in:
Which one of the following cell organelle is considered as ‘Cell within a cell’?
In a mature, functional mRNA of eukaryotes______.
Who among the following has developed technique to synthesize artificial mRNA with known repeated sequences of two or three nucleotides?
