Chromosomes become visible during prophase of mitosis as a result of
A)uncoiling.
B)DNA synthesis.
C)condensation.
D)chromatid duplication.
E)addition of proteins to the DNA.

Question

Quizplus · Accepted Answer

During prophase of mitosis, the chromatin condenses into visible chromosomes. This is because the tightly coiled structure of the chromosome allows it to be easily identified and separated during cell division. Uncoiling (A) would have the opposite effect, and DNA synthesis (B) and chromatid duplication (D) occur earlier in the cell cycle. Addition of proteins to the DNA (E) may be involved in chromatin packaging, but it is not the primary reason why chromosomes become visible during mitosis.

Chromosomes Become Visible During Prophase of Mitosis as a Result