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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
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 _______________.
Short Answer Question:
Write a short note on DNA packaging in the eukaryotic cell.
Find the odd one out:
Draw a neat and labelled diagram of the Nucleosome.
Explain the formation of a nucleosome.
The chromatin is packed to form a solenoid structure of ______ diameter.
The net electric charge on DNA and histones is ______.
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?
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 ______
Histones are rich in ______.
What is the function of histones in DNA packaging?
Total ATP production during EMP pathway is ______.
Histones are enriched with ______.
What are non-histone chromosomal (NHC) proteins?
Which protein introduces negative supercoils in prokaryotic DNA?
What is the typical range for linker DNA length between nucleosomes?
Describe the hierarchical levels of eukaryotic DNA packaging.
Which of the following correctly represents the basic repeating unit in prokaryotes versus eukaryotes?
