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Question

The eukaryotic genome differs from the prokaryotic genome because

A
The DNA is complexed with histone in prokaryotes
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B
The DNA is circular and single stranded in prokaryotes
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C
Repetitive sequences are present in eukaryotes
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D
Genes in the former case are organised into operons
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Solution

The correct option is B The DNA is circular and single stranded in prokaryotes
Genome refers to the total sets of chromosomes carried by each cell of the organism. In prokaryotes, the genetic material is circular and single stranded DNA. It has no association of histones. It remains in direct contact with the cytoplasm. The eukaryotic genetic material is linear and double stranded DNA. It is associated with histone proteins to form nucleosome unit. It is separated by a nuclear membrane.
So, the correct answer is option B.

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