Practice question
Question
A human cell is examined first during interphase and then during cell division. During interphase, its approximately two-metre-long DNA is present as a loose and indistinct chromatin network distributed among 46 chromosomes. During division, distinct chromosomes become visible. One chromosome has its centromere slightly away from the middle, producing one shorter and one longer arm.
Which conclusion correctly combines these observations?
Explanation
Interphase chromatin is loose and indistinct, whereas structured chromosomes become visible during cell division. A centromere slightly away from the middle produces one shorter and one longer arm, identifying a submetacentric chromosome.
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