Let's say that an experiment resulted in the production of several unattached kinetochores. What effect, if any, would this have on (i) the duration (length) of the mitotic phase, (ii) the timing of cyclin B’s appearance or disappearance, and (iii) the period of time for which MPF is active? Briefly explain your reasoning.
Let's say that an experiment resulted in the production of several unattached kinetochores. What effect, if any, would this have on (i) the duration (length) of the mitotic phase, (ii) the timing of cyclin B’s appearance or disappearance, and (iii) the period of time for which MPF is active? Briefly explain your reasoning.
It includes cell division, replication and growth. All these processes should be carried out in a regulated manner in order to ensure correct division and production of intact progeny. Cell cycle is a sequence of events by which a cell duplicates its genetic material, synthesizes other cell constituents and divides into two daughter cells.
Cell division is of two types : mitosis is where the parental cell divides into two cells with identical genetic material and meiosis involves the reduction of the parental genetic material into equal halves.
Cell cycle has two phases, interphase and M (mitotic) phase. The interphase is divided into G1 (gap 1), G2 (gap 2) and S (synthesis) phase.
G1 - It represents the time interval between mitosis and initiation of DNA (deoxyribonucleic acid) replication. It is the longest phase since all the components required for DNA replication and other processes are being made.
S - It is the phase of the cell cycle where DNA replication occurs.
G2 - In this phase all the necessary cell constituents like proteins are synthesized preparing the cell for division.
M phase - All the components of the cell undergo rearrangements. It has four stages: prophase, metaphase, anaphase and telophase.
Step by step
Solved in 2 steps
