How is long DNA molecule adjusted in a nucleus.

Solution

The Long DNA molecule is adjusted in the nucleus in the following way-:
The negatively charged DNA is wrapped around the positively charged histone octamer. The structure formed is called nucleosome that contains 200bp of DNA helix.
The nucleosomes repeating units form chromatin in the nucleus. Nucleosomes look like bead on string in chromatin.
The chromatin (bead on string structure) are packed to form the chromatin fibres that coil further to give metaphase chromosomes.

Nucleosome

Some More Questions From Molecular Basis of Inheritance Chapter

List the number of base pairs in :
(i) lambda bacteriophage

(ii) E.coli and

(iii) haploid content of human DNA.

Comment two chains of DNA have antiparallel polarity.

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Molecular Basis Of Inheritance

How is long DNA molecule adjusted in a nucleus.

Some More Questions From Molecular Basis of Inheritance Chapter

List the number of base pairs in :
(i) lambda bacteriophage

(ii) E.coli and

(iii) haploid content of human DNA.

Comment two chains of DNA have antiparallel polarity.

What is the difference between DNAs and DNAase ?

Which was first genetic material ?

Suggest one evidence to prove that RNA was first genetic material.

Why was RNA unstable ?

What made DNA more preferrable as genetic material ?

Process of replication is completed in how much time in E.coli ?

What is average rate of polymerization ?

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NCERT Sample Papers

Entrance Exams Preparation

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For Daily Free Study Material Join wiredfaculty

Molecular Basis Of Inheritance

How is long DNA molecule adjusted in a nucleus.

Some More Questions From Molecular Basis of Inheritance Chapter

List the number of base pairs in : (i) lambda bacteriophage (ii) E.coli and (iii) haploid content of human DNA.

Comment two chains of DNA have antiparallel polarity.

What is the difference between DNAs and DNAase ?

Which was first genetic material ?

Suggest one evidence to prove that RNA was first genetic material.

Why was RNA unstable ?

What made DNA more preferrable as genetic material ?

Process of replication is completed in how much time in E.coli ?

What is average rate of polymerization ?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

List the number of base pairs in :
(i) lambda bacteriophage

(ii) E.coli and

(iii) haploid content of human DNA.