Cell Cycle and Mitosis Flashcards
What is DNA overload?
When a cell becomes too large to divide
Prophase
Preparation, chromatin becomes chromosomes
Metaphase
Middle, chromosomes line up in middle
Anaphase
Away, sister chromatids are pulled apart
Telophase
two nuclei, chromosomes gather at both ends and create 2 nuclear envelopes
What order is the cell cycle in?
G1, S, G2, M
G1
Cell grows
S
DNA is replicated
G2
Cell prepares for mitosis
Metaphase
Stage in which division occurs
Put following actions in order
Cell is born, DNA replication, prepares for division, Cell divides
Interphase
Longest phase, contains G1, S and G2
Chromatin
loosely coiled, found in interphase
Chromosome
Tightly coiled DNA
Two reasons why cells have to divide
DNA overload, inefficiency of cell membrane