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प्रश्न
Name the transcriptionally active region of chromatin in a nucleus.
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उत्तर
Euchromatin is the transcriptionally active region of chromatin in a nucleus.
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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
Differentiate between Euchromatin and Heterochromatin.
Explain the role of histones in forming a nucleosome.
Short Answer Question:
Write a short note on DNA packaging in the eukaryotic cell.
Draw a neat and labelled diagram of the Nucleosome.
Write a note on the packaging of DNA in Eukaryotes.
Explain the formation of a nucleosome.
Repeating units of chromatin are known as ____________.
A typical nucleosome "bead" is made up of ______.
The additional set of proteins required for packaging of chromatin at higher level are called ______.
The octamer of histone protein is made of ______.
The chromatin is packed to form a solenoid structure of ______ diameter.
Read the following and answer from given below:
In prokaryotes, DNA is circular and present in the cytoplasm but in eukaryotes, DNA is linear and mainly confined to the nucleus. DNA or deoxyribonucleic acid is a long polymer of nucleotides. In 1953, the first correct double-helical structure of DNA was worked out by Watson and Crick. Based on the X-ray diffraction data produced by Maurice Wilkins and Rosalind Franklin. It is composed of three components, i.e., A phosphate group, a deoxyribose sugar, and a nitrogenous base. Different forms of DNA are B-DNA, Z-DNA, A-DNA, C-DNA, and D-DNA.
The double chain of B-DNA is coiled in a helical fashion. The spiral twisting of the B-DNA duplex produces ______
Which one of the following cell organelle is considered as ‘Cell within a cell’?
Whittaker placed prokaryotes in:
Distinguish between heterochromatin and euchromatin. Which of the two is transcriptionally active?
Which of the following amino acid residues will constitute the histone core?
What do the 'beads on strings' structure of DNA packaging represent?
