CELL STRUCTURES AND FUNCTION
CELL ORGANELLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Prokaryotes have DNA in a nucleoid region and eukaryotes have DNA in a nucleus.
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Prokaryotes have DNA in a nucleus and eukaryotes have DNA in a nucleoid region.
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Prokaryotes and eukaryotes have DNA in a nucleus.
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Prokaryotes don’t have DNA, but eukaryotes do and it is located in the nucleus.
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Detailed explanation-1: -Prokaryotes contain a single, double-stranded circular chromosome. Eukaryotes contain double-stranded linear DNA molecules packaged into chromosomes. The DNA helix is wrapped around proteins to form nucleosomes.
Detailed explanation-2: -In prokaryotes (bacteria), the genome is composed of a single, double-stranded DNA molecule in the form of a loop or circle. The region in the cell containing this genetic material is called a nucleoid. Some prokaryotes also have smaller loops of DNA called plasmids that are not essential for normal growth.
Detailed explanation-3: -By definition, prokaryotes lack a membrane-bound nucleus to hold their chromosomes. Instead, the chromosome of a prokaryote is found in a part of the cytoplasm called a nucleoid. Prokaryotes generally have a single circular chromosome that occupies a region of the cytoplasm called a nucleoid.
Detailed explanation-4: -The structure and chemical composition of the DNA in both the eukaryotic and prokaryotic cells are different. The prokaryotic cells have no nucleus, no organelles and a very small amount of DNA. On the other hand, the eukaryotic cells have nuclei and cell organelles, and the amount of DNA present is large.