Mitosis Flashcards
cell division does what
organisms producing identical or unique offspring is a distinguishable trait of living things compared to non-living things
Also is the reproduction of cells
Key events to note (4)
1.) Signals for cell division
2.) Duplication of genetic material (DNA replication)
3.) Separation of duplicated genetic material (mitosis/meiosis)
4.) Production of separate cells
(Cytokinesis)
what is mitosis
the separation of chromosomes
steps of mitosis
1.) Prophase
2.) Prometaphase
3.) Metaphase
4.) Anaphase
5.) Telophase
What are somatic cells and what do they undergo
non-reproductive cells and mitosis
what are gametes and what do they undergo
reproductive cells and meisosis
what are 2 sets of chromosomes?
diploid
what are half as many chromosomes as somatic cells?
haploid
what does prophase in mitosis do
Condensed chromosomes, miotic microtubule spindle forms (from centrosome)
What does prometaphase do
the nuclear envelope becomes fragmented, the microtubule spindles attach at the centrosome (kinetochore)
What does metaphase do
the centrosomes at opposite ends of the cell, chromosomes are aligned in the center of the cell
What does anaphase do
the sister chromatids are separated
what does telophase/cytokinesis do
two nuclear envelops/nuclei began to form, two cells started to form by division of the cytoplasm
Cell division phases
G1-Growth
S- DNA synthesis
G2- Growth + prep for cell division
what does the M phase do
responsible for mitosis and cytokinesis
