Mitosis and Meiosis Flashcards
produces daughter cells identical to the parent.
Mitotic cell division
-cell grows in size
-organelles replicated
Gap 1
– replication of DNA
– synthesis of proteins
-associated with DNA
Synthesis
-synthesis of proteins
-associated with mitosis
Gap 2
Division of somatic cells (non-reproductive cells) in eukaryotic organisms.
Mitosis
When the cell is not dividing…
DNA molecules are in extended, uncondensed form =
chromatin
chromosomes align along the equator of the cell, with one chromatid facing each pole
Metaphase
spindle fibers attached to kinetochores shorten and pull chromatids towards the poles.
Anaphase
sister chromatids separate
Anaphase
free spindle fibers lengthen and push the poles of the cell apart
Anaphase
undergoes cytokinesis by forming a cell plate between the two daughter nuclei.
Plant cells
undergoes cytokinesis through the formation of a cleavage furrow. A ring of microtubules contract, pinching the cell in half.
Animal cells
Sexually reproducing eukaryotes have two types of body cells
Somatic cells and sex cells{gametes or germline}
What is cell division of gametes called?
meiosis
Daughter cells have half the # of chromosomes as parent cell, so they are considered
haploid