In the G₁ phase of cell cycle, each chromosome has ___ chromatid(s)

Correct option is C

✅ (c) 1 chromatid [Pre-Replication Phase] • G₁ (Gap 1) is the phase just after mitosis and before DNA replication (S phase). • Each chromosome consists of a single chromatid (a single DNA molecule). • Once the cell enters S phase, DNA replication occurs, forming two sister chromatids.
❌ (a) 3 • Chromosomes never contain 3 chromatids. This is biologically incorrect.
❌ (b) 4 • This refers to tetraploid condition, not a normal G₁ chromosome state.
❌ (d) 2 • Seen only after S phase, not during G₁.