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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.
Very Short Answer Question:
Which are the nucleosomal 'core' histones?
Differentiate between Heterochromatin & Euchromatin.
Draw a neat and labelled diagram of the Nucleosome.
Write a note on the packaging of DNA in prokaryotes.
Which of the following is the CORRECT statement with respect to formation of nucleosome?
The octamer of histone protein is made of ______.
Nucleosome core is made of ______.
Barr body in mammals represents ______.
The structure in chromatin seen as ‘beads-on string’ when viewed under electron microscope are called ______.
Read the following and answer from given below:
The process of copying genetic information from the template strand of DNA into RNA is called transcription. It is mediated by RNA polymerase. Transcription takes place in the nucleus of eukaryotic cells. In transcription, only a segment of DNA and only one of the strands is copied into RNA.
Monocistronic structural genes are found in which organisms?
Read the following and answer from given below:
The translation is the process of polymerization of amino acids to form a polypeptide. The order and sequence of amino acids are defined by the sequence bases in the mRNA. The amino acids are joined by a bond called a peptide bond. The ribosome is the site of protein synthesis.
During translation, how many initiation factors are required in eukaryotes for initiation reactions?
Whittaker placed prokaryotes in:
In the eukaryotic cell cycle, cell fusion experiments show that:
Watson and Crick proposed the 'Double Helix' structure of DNA based on data produced by ______
______ are the amino acids of histones.
What is the function of histones in DNA packaging?
What do the 'beads on strings' structure of DNA packaging represent?
Part of chromatins which is densely packed stain darkly and is transcriptionally inactive is called ______.
