If the radiation exposure occurs before DNA synthesis, the damage manifests:
Correct Answer: Both the arms of chromosome
Description: If radiation exposure occurs after DNA synthesis (i.e., in G2 or mid and late S), only one arm of the affected chromosome is broken.
If radiation induced break occurs before DNA has replicated (i.e., in G1 or early S), the damage manifests in both arms (Chromosome aberration) at the next mitosis.
Category:
Radiology
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