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In eukaryotic cells, where is most DNA located?
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7. DNA and Chromosome Structure
Eukaryotic Chromosome Structure
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In eukaryotic chromosome structure, DNA coils tightly around histone proteins and further assembles into visible structures called what (especially during cell division)?
A
Ribosomes
B
Chromosomes
C
Lysosomes
D
Centrioles
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Understand that in eukaryotic cells, DNA is packaged to fit inside the nucleus and to regulate gene expression.
Recall that DNA first wraps around histone proteins forming nucleosomes, which look like 'beads on a string.'
Recognize that these nucleosomes further coil and fold to form a more compact structure called chromatin.
During cell division, chromatin condenses even more tightly to form distinct, visible structures under a microscope.
These highly condensed structures are called chromosomes, which ensure accurate DNA segregation during cell division.
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