Chp 14 Flashcards
Diploid (2n)
2 sets of chromosomes
Haploid (n)
1 set of chromosomes
mitosis 4 phases
Prophase
Metaphase
Anaphase
Telophase
Prophase
The nuclear breaks down
Chromatin contracts
Spindle fibres grow form the poles of the cell
Metaphase
The nuclear membrane has completely broken down
The spindle fibre from each poll attaches to the centromere
The chromosomes line at the equator
Anaphase
Spindle fibre pull the chromosome pair apart
After pulling the chromosome the spindle fibre contract to each pole
Telophase
Spindle fibres break down
2 nuclear membrane form
The original nucleus has divided into 2 different nuclei
Chromosomes length in and form chromatin
Animal cell cleavage
Cell constricts and forms a cleavage , gets deeper and deeper until 2 new daughter cells
Plant cell
Migrates to the equator , vesicles fuse to form a cell wall
Mitosis
When a cell divides into 2 daughter cells
Mitosis benefits
Growth and repair
Cancer
Uncontrolled mitosis division of normal cells
