If you are provided with root tips of an onion and are asked to count the chromosomes,which stage of mitosis would you look for?

Which of the following events is not associated with telophase?

In a eukaryotic cell,during which phase does the synthesis of histone proteins occur?

During mitosis,the nuclear envelope disappears at which stage?

Which type of cell division occurs during cleavage?

Choose the correct option regarding the duplication of organelles during the cell cycle:
$(1)$ Mitochondria and centrioles duplicate during the $(G_0 / G_1 / G_2)$ phase of interphase.