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प्रश्न
Differentiate between Euchromatin and Heterochromatin.
उत्तर
| Euchromatin | Heterchromatin | |
| 1. | It is a loosely packed region of chromatin. |
It is a densely packed region of DNA. |
| 2. | It stains light. | It stains dark. |
| 3. | Euchromatin is a transcriptionally active chromatin region. |
Heterochromatin is a transcriptionally nearly dormant portion of the genome. |
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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
The number of adenine molecules in a given DNA segment is 25 and the number of cytosine molecules is 45, the total number of nucleotides in the segment is _______________.
In an octamer of the nucleosome, core DNA consists of ______ base pairs.
Attempt any TWO of the following:
With the help of a suitable example illustrate ‘Palindrome’.
Short Answer Question:
Write a short note on DNA packaging in the eukaryotic cell.
Repeating units of chromatin are known as ____________.
The chromatin is packed to form a solenoid structure of ______ diameter.
Telomere has a unique property of __________.
The structure in chromatin seen as ‘beads-on string’ when viewed under electron microscope are called ______.
The most abundant prokaryotes helpful to human in making curd from milk and in the production of antibiotics are the ones categorised as ______ .
