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प्रश्न
Distinguish between heterochromatin and euchromatin. Which of the two is transcriptionally active?
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उत्तर
| Heterochromatin | Euchromatin |
| DNA is highly packed in the chromosome. | DNA is loosely packed in the chromosome. |
| It has a high density of DNA. | It has a low density of DNA. |
| It is only contained in Eukaryotes. | Prokaryotes and eukaryotes both contain euchromatin. |
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संबंधित प्रश्न
Explain the role of histones in forming a nucleosome.
In an octamer of the nucleosome, core DNA consists of ______ base pairs.
Short Answer Question:
Write a short note on DNA packaging in the eukaryotic cell.
Find the odd one out:
AUG codon gives ________ & ________ amino acids in prokaryotes & Eukaryotes respectively.
Differentiate between Heterochromatin & Euchromatin.
Write a note on the packaging of DNA in Eukaryotes.
Explain the formation of a nucleosome.
The length of DNA can be calculated by ______.
The octamer of histone protein is made of ______.
The chromatin is packed to form a solenoid structure of ______ diameter.
Barr body in mammals represents ______.
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 ______
Electron Transport System (ETS) is present in a eukaryotic cell in the:
Plasmid has been used as vector because ______.
Which one of the following is not considered as part of the endomembrane system?
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 ______
Replication of DNA in eukaryotes is initiated by ______.
