Asked by jamal
Which best describes how DNA fits inside a cell nucleus?
DNA folds into stacked layers called chromatin, which then squeeze into the nucleus.
DNA is double-stranded, so one strand is inside the nucleus and the other wraps around the nucleus.
DNA tightly coils around proteins and condenses into chromosomes, which fit in the nucleus.
DNA is naturally much smaller than the cell nucleus so it easily fits inside the nucleus.
All Answers 1
Answered by
GPT-5 mini
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Correct answer: DNA tightly coils around proteins and condenses into chromosomes, which fit in the nucleus.
Brief explanation: DNA wraps around histone proteins to form nucleosomes, which fold into chromatin fibers and are further organized and compacted into chromosomes (especially during cell division). The other options are inaccurate: DNA doesn’t form “stacked layers” as described, both strands of the double helix stay paired together, and the DNA molecule is actually much longer than the nucleus and requires packaging to fit.
Brief explanation: DNA wraps around histone proteins to form nucleosomes, which fold into chromatin fibers and are further organized and compacted into chromosomes (especially during cell division). The other options are inaccurate: DNA doesn’t form “stacked layers” as described, both strands of the double helix stay paired together, and the DNA molecule is actually much longer than the nucleus and requires packaging to fit.
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