Question
Differentiate between Heterochromatin and Euchromatin.
✓
Answer
Important difference between Heterochromatin and Euchromatin
| Heterochromatin | Euchromatin | |
| 1. | It is a form of DNA in the chromosome that has the characterization of tight packing | It is a form of DNA in the chromosome that has the characterization of loose packing |
| 2. | Dark stain | Light stain |
| 3. | High density of DNA | Low density of DNA |
| 4. | Little or no transcriptional activity here. | There is the active participation of the transcriptional process here |
| 5. | They exist at the periphery of the nucleus. Furthermore, they exist only in eukaryotic cells. | They exist in the nucleus's inner body. Furthermore, they exist in eukaryotic as well as prokaryotic cells. |
| 6. | Coiling is compact, regions are sticky, there is no change in the phenotype of an organism, gene expression regulation is possible, and maintenance of the cell's structural integrity. | Coiling is loose, regions are non -sticky, variation may occur due to the effect in DNA at the time of the genetic process, genetic variations are possible and genetic transcription takes place. |
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
How do bio-fertilizers enrich the fertility of the soil?
Write about the amendment passed by the Indian Parliament regarding patent issues.
List the two main propositions of Oparin and Haldane.
Draw a well-labelled diagram of an antibody molecule.
Heat loss or heat gain depends upon the surface area of the organism's body. Explain with the help of a suitable example.
OR
Explain, why are small animals rarely found in the polar regions?Name two biological products produced by transgenic animals and their use for human beings.
A mature embryo-sac in a flowering plant may possess 7-cells, but 8-nuclei. Explain with the help of a diagram only.
Given below is a schematic representation of a mRNA strand
(i) In the above sequence identify the translational unit in mRNA.
(ii) Where are UTRs found and what is their significance?
(i) In the above sequence identify the translational unit in mRNA.
(ii) Where are UTRs found and what is their significance?
Explain any two devices by which autogamy is prevented in flowering plants.
A new type of drug, PTC 124, enables translation to continue through the nonsense codon. Trials in mice homozygous for a CFTR allele containing the nonsense codon have found that animals treated with PTC 124 produce normal CFTR protein in their cells. The drug is taken orally and is readily taken up into cells all over the body.
Using your knowledge of the progress towards successful gene therapy for cystic fibrosis, suggest why PTC 124 could be simpler and more reliable treatment for this disease.
Using your knowledge of the progress towards successful gene therapy for cystic fibrosis, suggest why PTC 124 could be simpler and more reliable treatment for this disease.