Multiple Choice
In which organelle is most of the DNA found in a eukaryotic cell?
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11. Cell Division
Organization of DNA in the Cell
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Which is the relaxed form of DNA in a cell's nucleus?
A
Chromosome
B
Chromatin
C
Histone
D
Nucleosome
Verified step by step guidance1
Understand the structure of DNA in the cell nucleus: DNA is organized in different forms depending on the phase of the cell cycle. During interphase, DNA is in a relaxed form, while during mitosis, it is highly condensed.
Differentiate between the terms: Chromatin, Chromosome, Histone, and Nucleosome. Chromatin is the relaxed form of DNA, which consists of DNA wrapped around histone proteins. Chromosomes are the condensed form of DNA visible during cell division.
Recognize that histones are proteins around which DNA winds to form nucleosomes, the basic unit of chromatin. Nucleosomes further fold to form chromatin fibers.
Identify that chromatin is the form of DNA present during interphase, allowing for transcription and replication processes to occur efficiently.
Conclude that the relaxed form of DNA in a cell's nucleus is chromatin, as it allows for the necessary cellular processes to take place while the cell is not dividing.
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