Mitosis Flashcards
Mitosis is proceeded by what phase?
Interphase
Define mitosis?
Produces two daughter nuclei that have the same number of chromosomes as the parent cell and each other
What are the 4 phases of mitosis?
Prophase Metaphase Anaphase Telophase (In this order)
What happens in prophase?
Chromosomes become visible
Nuclear envelope disappears
What happens in metaphase?
Chromosomes arrange in the centre of the cell
The spindle forms
What happens in anaphase?
Two threads of chromosomes (chromatids) migrate to the opposite poles.
Caused by spindle fibres attached to the chromatids contracting
What happens in telophase?
Chromatids reach poles and become indistinct
Nuclear envelope reforms
Nucleolus reforms
Spindle disintegrates
What is the importance of mitosis?
Growth
Differentiation
Repair