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Eukaryotic Chromosomes and Histones
Grade Level
AP Biology
APB.286 Eukaryotic Chromosomes and Histones
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A student sees multiple DNA bands after chromosome isolation and concludes that each band must be a circular plasmid. Which reasoning best revises the conclusion?
A
All DNA bands prove the sample contains only bacterial chromosomes.
B
Different bands can represent separate linear eukaryotic chromosomes or fragments, and chromosome models must include histone packaging in vivo.
C
Bands on a gel show ribosomes rather than nucleic acids.
D
Histones make DNA invisible, so bands cannot come from eukaryotic cells.
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