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Nucleus

Positively ch...

Question

Positively charged proteins which help in packaging of DNA into nucleosomes are called.

A

chromosomes

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B

nucleosomes

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C

histones

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D

chromatin

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Solution

The correct option is C histones
Histones are positively charged proteins present in the nucleus of the cell. It helps in packaging DNA into nucelosomes which help in further condensation of chromosomes.

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Similar questions

Q. Positively charged proteins which help in packaging of DNA into nucleosomes are called.

Q. Pick the incorrect statements among the following:
(i) A typical nucleosome contains 400 bp of DNA.
(ii) The positively charged DNA is wrapped around the negatively charged histone octamer to form a structure called nucleosome.
(iii) Histones are rich in the basic amino acid residues like asparagine and valine.
(iv) The packing of chromatin at higher level requires an additional set of proteins that collectively are referred to as non-histone chromosomal proteins.

Q. are the proteins associated with DNA in a nucleosome.

Q. What is nucleosome? Explain the packaging of DNA helix. Draw the labelled diagram of nucleosome.

Q. Assertion :DNA is associated with proteins. Reason: DNA binds around histone proteins that form a pool and the entire structure is called as a nucleosome.

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