Packaging of DNA

Which of the following statement is true for the packaging of DNA in eukayotes? A. DNA is packaged with a set of basic protein called histone. B. Histone contain negatively charged amino acid in its side chain. C. DNA packed with histone octamer are called nuclesome. D. Nuclesome is further packed to form chromatin fibre.

Double Helical Model OF DNA Calculations for Human and E coli DNA Packaging OF DAN 1 in Eukaryotic 2 in Prokaryotes Nucleosome Model C-Value

Assertion :- Packaging of chromatin at higher lever required additional set of proteins. Reason : Non histone chromsomal proteins provide scaffold for packaging of chromatin.

Assertion : Histones are basic proteins of major importance in packaging of eukaryotic DNA, DNA and histones comprise chromatin forming the bulk of eukaryotic chromosome . Reason : Histones are five major types H_(1), H_(2)A, H_(2)B, H_(30 and H_(4)

Assertion. Histones are basic protein of major importance in packaging of eukaryotic DNA. DNA and histone comprise chromatin forming bulk of eukaryotic chromosome. Reason. Histones are five major types H_(1), H_(2)A, H_(2)B, H_(3) and H_(4) .

The length of a DNA molecule in a typical mammalian cell is calculated to be approximately 22 metres. How is the packaging of this long molecule done to accomodate it within the nucleus of the cell ?

The cost of packaging of the mangoes is 40% the cost of fresh mangoes themselves.The cost of mangoes increased by 30% but the cost of packaging decreases by 50%, then the percentage change of the cost of packed mangoes,if the cost of packed mangoes is equal to the cost of the cost of fresh mangoes and cost of packaging :