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प्रश्न
In an experiment, DNA is treated with a compound which tends to place itself amongst the stacks of nitrogenous base pairs. As a result of which, the distance between two consecutive base increases, from 0.34nm to 0.44 nm. Calculate the length of DNA double helix (which has 2 × 109 bp) in the presence of saturating amount of this compound.
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उत्तर
2 × 109 × 0.44 × 10–9/bp
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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.
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 _______________.
Describe the structure of a nucleosome.
Explain the role of histones in forming a nucleosome.
In an octamer of the nucleosome, core DNA consists of ______ base pairs.
Write a note on the packaging of DNA in prokaryotes.
Explain the formation of a nucleosome.
Which of the following is the CORRECT statement with respect to formation of nucleosome?
Repeating units of chromatin are known as ____________.
The structure in chromatin seen as ‘beads-on string’ when viewed under electron microscope are called ______.
Find out the wrong statement about heterochromatin.
Which of the following is correct about mature RNA in eukaryotes?
A stretch of euchromatin has 200 nucleosomes. How many bp will there be in the stretch and what would be the length of the typical euchromatin?
Electron Transport System (ETS) is present in a eukaryotic cell in the:
In the eukaryotic cell cycle, cell fusion experiments show that:
Which one of the following statements about Histones is wrong?
Distinguish between heterochromatin and euchromatin. Which of the two is transcriptionally active?
