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In polytene chromosomes dark bands are v...

In polytene chromosomes dark bands are visible. These bands are formed by the apposition of

A

Protein particles

B

Chromomeres on chromonemata

C

Nucleosomes

D

None of these

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The correct Answer is:
B
(b) Polytene chromosomes contain several dark stained regions called bands separated by lighter or less stained area called interbands . These dark bands are heterchromatin (genetically inert) area .
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