DNA synthesis occurs. The cell grows or enters a state of growth arrest. The cell grows and synthesizes proteins needed for mitosis. Sister chromatids separate. G₁ phase Chromosomes are duplicated. Interphase ends. S phase Cell division occurs. G₂ phase Interphase begins. M phase

the chromosomes are replicated before each cell division and cell division is a continuous process for the replacement of worn tissues and normal growth.

During the cell cycle there are three checkpoints. Match each description with the correct checkpoint.                                                                        Requires growth signals and checks there are no mutation in the DNA                                                                        Checks that DNA is properly replicated and that all the organelles and proteins needed for division are present                                                                         Ensures that all the chromosomes are lined up and accounted for A. G1/S B. S/G2 C. G2/M  D. Metaphase/Anaphase E. Anaphase/Telophase

Cell Cycle: Events Name the cell cycle stage in which each event takes place. Each answer choice is used once and only once. Each chromosome is duplicated. [Choose ] Mitosis The cell divides into two daughter Interphase Cytokinesis cells. G1 G2 Cell contents, except for chromosomes, are duplicated. Chromatids are separated from each Cytokinesis other forming two identical nuclei. The majority of the cell's life, when it is not actively engaged in chromosomal or cellular division. Interphase The cell double-checks duplicated chromosomes and makes any necded G2 repairs.

Actively dividing eukaryote cells pass through a series of stages known collectively as the cell cycle. Match each label to the correct locationn in the model. (use photo to know where  they be put)   ITEM BANK: Move to Bottom Cell double checks duplicated material for errors. Cellular contents excluding chromosomes are duplicated. Chromosomes are duplicated. Genetic material divided and 2 daughter cells form.   not graded

Which of the following is TRUE for cell division and mitosis? prophase is when the nuclear membrane reforms anaphase is when chromosomes align in the middle of the cell all human cells undergo mitosis and cell division cytokinesis involves separation of the mitochondria population

During mitosis, the cohesin protein holds the sister chromatids together and is broken down by the ___________ protein. Shugosin protects cohesin from being broken down in the ________________ region until the anaphase stage when the sister chromatids separate.   separase; centromere cyclin; centrosome H1 histone; heterochromatic shugoshin; nuclear ribobuclease; cytoplasmic

Mitosis: Events Name the phase of mitosis in which each event occurs. Each answer choice is used once and only once. Chromosomes line up along the cell's [Choose] equatorial plate. Chromatids, now real chromosomes, [ Choose ] move to opposite sides of the cell. Chromosomes shorten and thicken. [ Choose ] Nuclear membrane forms. [Choose] Spindle fibers attach to kinetochores [Choose] on chromosomes and begin to pull.

Cancer, the uncontrolled growth of cells, often results in a tumor, or mass of abnormal cells. Some cancerous tumors consist of many cells that are much smaller than normal. According to Figure 1, what part of the cell cycle is most likely being affected? Explain.