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प्रश्न
The net electric charge on DNA and histones is ______.
पर्याय
negative and positive, respectively
both negative
both positive
zero
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उत्तर
The net electric charge on DNA and histones is negative and positive, respectively.
Explanation:
On DNA and histones, the net electric charge is both negative and positive. The presence of phosphate ions in the nucleotides makes the DNA molecule negatively charged. Because lysine and arginine amino acid residues are present, his tones are positively charged.
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संबंधित प्रश्न
Name the transcriptionally active region of chromatin in a nucleus.
Explain the role of histones in forming a nucleosome.
Find the odd one out:
Differentiate between Heterochromatin & Euchromatin.
Write a note on the packaging of DNA in Eukaryotes.
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 helix structure of DNA was proposed by ______
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Plasmid has been used as vector because ______.
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Which of the following amino acid residues will constitute the histone core?
What do the 'beads on strings' structure of DNA packaging represent?
Histones are enriched with ______.
What is a histone octamer?
What is the approximate diameter of a eukaryotic cell nucleus?
How many base pairs are contained in E. coli DNA?
What is the compaction ratio for prokaryotic DNA within the bacterial cell?
What is the role of histone H1 in eukaryotic chromatin?
What is the total DNA content per nucleosome?
