meiosis and mitosis Flashcards
prophase
chromatin supercoils to form chromosomes
metaphase
chromosomes align along metaphase plane
anaphase
sister chromatids separate and migrate
telophase
chromosomes arrive at the poles
interphase
dna uncoils and is loose and diffuse
synapsis
homologous chromosomes pair (only in meiosis I)
chiasma
connections between homologous chromosomes that can result in crossing over
crossing over
non sister chromatids exchange genetic info
haploid
one set of chromosomes
diploid
two sets of chromosomes (humans)
meiosis I
homologs pair and seperate
meiosis II
same as mitosis
meiosis
reductive form of nuclear division
2 nuclear divisions
results in 4 daughter nuclei
makes chromosome count in a diploid organism reduce to haploid state
mitosis
conservative form of nuclear division
results in 2 daughter nuclei genetically identical to parent nucleus (clones)
cytokinesis
cell division