Cell Growth and Reproduction (Cell Cycle) Flashcards
Interphase
Phase in which the cell prepares for cell division. It is made up of three subphases
G1 (Gap 1)
Cell grows in size
S (Synthesis)
DNA Replication (chromosomes are duplicated)
G2 (Gap 2)
Organelles are copied and cell prepares for division
Mitosis
Division of the nucleus (including DNA)
What are the four subphases of Mitosis
Prophase
Metaphase
Anaphase
Telophase
Cytoknesis
stage of the cell cycle when the cytoplasm splits and two separate cells are made.
Apoptosis
the death of cells which occurs as a normal and controlled part of an organism’s growth or development
Spindle Fibers
form a protein structure that divides the genetic material in a cell
Centriole
a minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division.
Centromere
a constricted region of a chromosome and plays a key role in helping the cell divide up its DNA during division (mitosis and meiosis).
Chromatid
each of the two threadlike strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA.
Chromosomes
a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
The three main phases of the cell cycle are…
Interphase, Mitosis, Cytoknesis
Homologous Chromosomes
Have the same length, shape, and set of genes