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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
How are the following formed and involved in DNA packaging in a nucleus of a cell?
(ii) Nucleosome
(iii) Chromatin
Name the transcriptionally active region of chromatin in a nucleus.
Describe the structure of a nucleosome.
Find the odd one out:
Explain the formation of a nucleosome.
Repeating units of chromatin are known as ____________.
The additional set of proteins required for packaging of chromatin at higher level are called ______.
Telomere has a unique property of __________.
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.
Whittaker placed prokaryotes in:
Which process occurs in the regulation of gene expression in prokaryotes but does not occur in the regulation of gene expression in eukaryotes?
What is the function of histones in DNA packaging?
What do the 'beads on strings' structure of DNA packaging represent?
Replication of DNA in eukaryotes is initiated by ______.
If the DNA from a single human cell were fully stretched out, what would be its approximate length?
Which of the following correctly describes prokaryotic DNA?
In prokaryotic DNA compaction, the looping step creates how many loop domains?
What is the typical range for linker DNA length between nucleosomes?
What is the diameter of the nucleosome fibre (beads-on-string structure)?
Which locations in the eukaryotic nucleus typically contain heterochromatin?
