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Out of the following four statements how many of them are correct?
(I)  Two nucleotides are joined by 3′ - 5′ phosphodiester linkage.
(II) Chromatin which is a beads – on string structure, where beads represents histone  protein.  
(III) Euchromatin is transcriptionally active whereas heterochromatin is inactive.
(IV) Histone proteins has amino acids with positive charge on side chains.  
  • a)
    4
  • b)
    3  
  • c)
    2
  • d)
    1
Correct answer is option 'B'. Can you explain this answer?
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Out of the following four statements how many of them are correct?(I) ...
The major difference between heterochromatin and euchromatin is thatheterochromatin is such part of the chromosomes, which is a firmly packed form and are genetically inactive, while euchromatin is an uncoiled (loosely) packed form of chromatin and are genetically active.
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Most Upvoted Answer
Out of the following four statements how many of them are correct?(I) ...
Yes three statements are correct 1,3 and 4. In the 2 statement the beads like structure represents nucleosome ( the structures in which DNA strands are being wrapped on histone protein). Thus the beads are not simply histones rather they are nucleosome.
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Community Answer
Out of the following four statements how many of them are correct?(I) ...
Option ii is wrong. the rest all are correct. beads do not only represent histone protein but a nu-body which is an octamer of DNA and histones together.
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Out of the following four statements how many of them are correct?(I) Two nucleotides are joined by 3′ - 5′ phosphodiester linkage.(II) Chromatin which is a beads – on string structure, where beads represents histone protein. (III) Euchromatin is transcriptionally active whereas heterochromatin is inactive.(IV) Histone proteins has amino acids with positive charge on side chains. a)4b)3 c)2d)1Correct answer is option 'B'. Can you explain this answer?
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