mitosis Flashcards
what type of reproduction is mitosis
asexual
how many parent cells are in mitosis
1
how many daughter cells are formed in mitosis
2
is mitosis diploid or hapoid
diploid (46)
uses of mitosis
growth
repair of tissue to replace cells
reproduction
name the phases of mitosis in order
interphase
prophase
metaphase
anaphase
telophase + cytokinesis
what happens in interphase
chromosomes in cells divide and replicate
copies join at centromere
what happens in prophase
chromosomes become visible - shorten and thicken
spindles form at each centriole
what happens in metaphase
chromosomes line up at equator and become attached to spindle by centromere
what happens in anaphase
spindle fibres contract pulling chromatids apart from centromere
causes chromatids to form v shape
what happens in telophase
chromosomes reach opposite poles
chromosomes uncoil and become very long and thin
nuclear envelope forms around each group of chromosomes
2 nuclei form
what happens in cytokinesis
cytoplasm divides
what happens in G1 phase
cell grows an new organelles and proteins are made
what happens in S phase
cell replicates its DNA, ready to divide by mitosis
what happens in G2 phase
(preparation for mitosis)
cell keeps growing and more proteins needed for cell divisions are made
