Scelta multipla
Which of the following terms typically apply to eukaryotic chromosomes?
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7. DNA and Chromosome Structure
Eukaryotic Chromosome Structure
Scelta multipla
In eukaryotic cells, where is most DNA located?
A
In ribosomes as part of the large and small subunits
B
Free in the cytosol as circular DNA plasmids
C
In the nucleus, packaged into chromatin (chromosomes)
D
Attached to the outer surface of the plasma membrane
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Understand the structure of eukaryotic cells, which have distinct membrane-bound organelles including a nucleus.
Recall that DNA in eukaryotic cells is primarily found inside the nucleus, where it is organized into structures called chromosomes.
Recognize that DNA is not located in ribosomes; ribosomes are made of RNA and proteins and are the site of protein synthesis.
Note that circular DNA plasmids are common in prokaryotes and some organelles like mitochondria, but not free in the cytosol of eukaryotic cells.
Conclude that the majority of DNA in eukaryotic cells is packaged into chromatin within the nucleus, not attached to the plasma membrane.
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