“The chromosome number is doubled in the prophase of mitosis and halved in the anaphase of mitosis.” In anaphase, the spindle separates the two sister chromatids (not chromosomes) of each chromosome and moves them to opposite spindle poles.
In which stage of mitosis chromosome number is doubled?
S phase (DNA Synthesis) – Each of the 46 chromosomes are duplicated by the cell. III. G2 phase (Gap 2) – The Cell “double checks” the duplicated chromosomes for error, making any needed repair.
Do chromosomes condense in prophase of mitosis?
Figure 8.29. The nucleus during mitosis. Micrographs illustrating the progressive stages of mitosis in a plant cell. During prophase, the chromosomes condense, the nucleolus disappears, and the nuclear envelope breaks down.
Which is the correct order of cell cycle?
So the correct order of stages in the cell cycle is G1 → S → G2 → M. Some cells do not divide repeatedly and enter an inactive stage called G or quiescent stage after exiting G1.
What is the chromosome number of daughter cells in mitosis?
At the end of mitosis, the two daughter cells will be exact copies of the original cell. Each daughter cell will have 30 chromosomes.