Cell Study Guide Flashcards
Phase A
G0
Phase B
G1
Phase C
S
Phase D
G2
Phase E
M
hat phase do cells spend 90% of their life in?
Interphase
What stage is responsible for the splitting of the cytoplasm?
Cytokinesis
What is the end result of the cell cycle?
2 identical daughter cells.
What is one reason DNA might become tightly coiled during the cell cycle?
DNA becomes tightly coiled to ensure genetic material splits evenly and creates 2 identical daughter cells. The chromatin condenses to create visible chromosomes.
Identify the point at which sister chromatids are joined.
The point at which sister chromatids are joined is called the centromere.
prophase
Genetic material begins to seperate, chromatin, condenses. Chromatin coils and become compact, mitotic spindle begins to form.(Gather and form)
formation of visible chromosomes, start of mitotic spindle.
Prometaphase
Genetic material splits into two identical daughter cells. Nuclear envelope breaks down. Protein formation (kinetochore) around the centromere. Spindle fibers grown.
Breakdown of the nuclear envelope frees the sister chromatids from the nucleus, (necessary for separating the nuclear material into two cells.)
Metaphase
Chromosomes align in the middle of the cell. Microtubules pull the sister chromatids back and forth until they align along the equator of the cell
Ensures that the cell is ready to divide.
Anaphase
Chromosomes are separated into two identical, independent chromosomes by the mitotic spindle. The separated chromosomes are then pulled by the spindle to opposite poles of the cell.
Anaphase ensures that each daughter cell receives an identical set of chromosomes
Telophase
Genetic material separates. A nuclear membrane forms around each set of chromosomes.
Genetic material separates. A nuclear membrane forms around each set of chromosomes.
Ensures the separation of genetic material and develops the nuclear envelopes for each cell.