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प्रश्न
Although a prokaryotic cell has no defined nucleus, yet DNA is not scattered throughout the cell. Explain.
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उत्तर
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संबंधित प्रश्न
Explain the role of histones in forming a nucleosome.
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 ____________.
A typical nucleosome "bead" is made up of ______.
Which one of the following histone molecule is NOT double in one nucleosome?
Barr body in mammals represents ______.
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.
Name the linkage present between the nitrogen base and pentose sugar in DNA.
Read the following and answer from given below:
The process of copying genetic information from the template strand of DNA into RNA is called transcription. It is mediated by RNA polymerase. Transcription takes place in the nucleus of eukaryotic cells. In transcription, only a segment of DNA and only one of the strands is copied into RNA.
Monocistronic structural genes are found in which organisms?
Flagella are present both in prokaryotic and eukaryotic cells, however, they differ in:
Histones are rich in ______.
Plasmid has been used as vector because ______.
Watson and Crick proposed the 'Double Helix' structure of DNA based on data produced by ______
Which one of the following statements about Histones is wrong?
What is the function of histones in DNA packaging?
Which of the following amino acid residues will constitute the histone core?
Part of chromatins which is densely packed stain darkly and is transcriptionally inactive is called ______.
Distinguish between heterochromatin and euchromatin with reference to staining property and activity.
