NEET Botany Molecular Basis of Inheritance Questions Solved

BOARD

 

(a) What is this diagram representing?

(b) Name the parts a,b and c.

(c) In the eukaryotes the DNA molecules are organised within the nucleus. How is the DNA molecule organized in a bacterial cells in absence of a nucleus?

(a) The diagram represents the structure of nucleosome.

(b) 'a' is histone octamer,    'b' is DNA,

      'c' is H1 histone,            'd' is one of histone molecules

(c) In a bacterial cell, DNA molecule-negatively charged is held with some proteins that have positive charge in the region of nucleoid.

The DNA in nucleoid is organised in large loops held by proteins.

Difficulty Level:

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