Advertisements
Advertisements
Question
What is the function of histones in DNA packaging?
Advertisements
Solution
Histone are the basis protein that are rich in arginine and lysine. Histones form octamer on which DNA is wrapped and form nucleosome that means it helps in packaging of DNA in eukaryotes.
APPEARS IN
RELATED QUESTIONS
Describe the structure of a nucleosome.
Write a note on the packaging of DNA in prokaryotes.
The octamer of histone protein is made of ______.
The length of DNA segment having 44 base pairs is ______
Barr body in mammals represents ______.
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:
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.
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:
Plasmid has been used as vector because ______.
Watson and Crick proposed the 'Double Helix' structure of DNA based on data produced by ______
______ are the amino acids of histones.
Distinguish between heterochromatin and euchromatin. Which of the two is transcriptionally active?
Which of the following amino acid residues will constitute the histone core?
Part of chromatins which is densely packed stain darkly and is transcriptionally inactive is called ______.
Distinguish between heterochromatin and euchromatin with reference to staining property and activity.
Total ATP production during EMP pathway is ______.
Histones are enriched with ______.
The non-condensed, light stained and transcriptionally active segments of chromosomes are called ______.
