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प्रश्न
Differentiate between Euchromatin and Heterochromatin.
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उत्तर
| Sr. no | 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. |
संबंधित प्रश्न
How are the following formed and involved in DNA packaging in a nucleus of a cell?
(ii) Nucleosome
(iii) Chromatin
Describe the structure of a nucleosome.
In an octamer of the nucleosome, core DNA consists of ______ base pairs.
Explain the formation of a nucleosome.
A typical nucleosome "bead" is made up of ______.
The octamer of histone protein is made of ______.
Telomere has a unique property of __________.
Histone proteins are ______.
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:
The translation is the process of polymerization of amino acids to form a polypeptide. The order and sequence of amino acids are defined by the sequence bases in the mRNA. The amino acids are joined by a bond called a peptide bond. The ribosome is the site of protein synthesis.
During translation, how many initiation factors are required in eukaryotes for initiation reactions?
Electron Transport System (ETS) is present in a eukaryotic cell in the:
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?
Watson and Crick proposed the 'Double Helix' structure of DNA based on data produced by ______
______ are the amino acids of histones.
Replication of DNA in eukaryotes is initiated by ______.
Part of chromatins which is densely packed stain darkly and is transcriptionally inactive is called ______.
Define the Transfection.
Who among the following has developed technique to synthesize artificial mRNA with known repeated sequences of two or three nucleotides?
