Question

At what stage of the cell cycle, are histone proteins synthesized in a eukaryotic cell?

• A. During telophase
• B. During S phase
• C. During G${}_2$ stage of prophase
• D. During entire prophase

Answer 1

Answer: (B)

During S phase

During S phase of the cell cycle, the histone proteins are synthesized in a eukaryotic cell. The major event in S phase is DNA replication. The goal of this process is to create exactly two identical semi-conserved chromosomes. The cell prevents more than one replication from occurring by loading pre-replication complexes onto the DNA at replication origins during G${}_1$ phase which is dismantled in S phase as replication begins.

So, the correct answer is option B.