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प्रश्न
What would happen if histones were to be mutated and made rich in acidic amino acids such as aspartic acid and glutamic acid in place of basic amino acids such as lysine and arginine?
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उत्तर
If histone proteins were rich in acidic amino acids instead of basic amino acids then they may not have any role in DNA packaging in eukaryotes as DNA is also negatively charged molecule. The packaging of DNA around the nucleosome would not happen. Consequently, the chromatin fibre would not be formed.
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संबंधित प्रश्न
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?
The additional set of proteins required for packaging of chromatin at higher level are called ______.
Telomere has a unique property of __________.
The length of DNA segment having 44 base pairs is ______
Barr body in mammals represents ______.
Which one of the following cell organelle is considered as ‘Cell within a cell’?
Plasmid has been used as vector because ______.
During translation initiation in prokaryotes, a GTP molecule is needed in:
Watson and Crick proposed the 'Double Helix' structure of DNA based on data produced by ______
______ are the amino acids of histones.
The most abundant prokaryotes helpful to human in making curd from milk and in the production of antibiotics are the ones categorised as ______ .
Replication of DNA in eukaryotes is initiated by ______.
Name the enzymes involved in replacement of gaps during RNA processing in prokaryotes and eukaryotes.
What is the approximate diameter of a eukaryotic cell nucleus?
Which protein introduces negative supercoils in prokaryotic DNA?
Which of the following are core histones that form part of the histone octamer?
