Cell Division Flashcards
two identical copies (chromatids) formed by the replication of a single chromosome
Sister chromatid
the region of a chromosome to which the microtubules of the spindle attach, via the kinetochore, during cell division.
Centromere
the resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis.
Interphase
The first of four phases of the cell cycle that takes place in eukaryotic cell division
G1
the part of the cell cycle in which DNA is replicated, occurring between G1 phase and G2 phase
S
The second subphase of Interphase in the cell cycle directly preceding mitosis
G2
the first stage of cell division, before metaphase, during which the chromosomes become visible as paired chromatids and the nuclear envelope disappears
Prophase
the second stage of cell division, between prophase and anaphase, during which the chromosomes become attached to the spindle fibers
Metaphase
the stage of meiotic or mitotic cell division in which the chromosomes move away from one another to opposite poles of the spindle.
Anaphase
the final phase of cell division, between anaphase and interphase, in which the chromatids or chromosomes move to opposite ends of the cell and two nuclei are formed
Telophase
the cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
Cytokenesis
Name two reasons cells must divide
To make more cells
To make up for old cells
The exchange rate of materials through membrane is dependent on the _________
Surface area
The rate at which food and oxygen are used up and waste products are produced is dependent on the _____________
Metabolism
a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
Mitosis
