CB2 Cell division Flashcards
What are the 3 parts of the cell cycle?
Interphase, mitosis, cytokinesis
What 3 events occur in interphase?
Cell grows, organelles replicate, DNA replicates
What happens during mitosis?
Division of the nucleus to produce 2 genetically identical nuclei.
What happens during cytokinesis?
Cell membrane pinches off to produce 2 identical cells.
What are the 4 descriptions of the cells produced by mitosis?
2, genetically identical, diploid, daughter cells
What is asexual reproduction?
Reproduction involving 1 parent producing identical offspring.
What is sexual reproduction?
Reproduction involving 2 parents producing different offspring.
How many chromosomes are found in a diploid human cell?
46
How many chromosomes are found in a haploid human cell?
23
What causes a cell to become cancerous?
Mutation in DNA.
How do cancerous cells divide?
Uncontrollably.
What are the 4 phases of mitosis (in order)?
Prophase, metaphase, anaphase, telophase (Pass Me A Tequila or PMAT)
What 2 processes happen in prophase?
Chromosomes condense, the membrane around the nuclues breaks down so the chromosomes lie free in the cytoplasm
What happens in metaphase?
The chromosomes line up at the center of the cell
What 2 processes happen in anaphase?
The spindle fibres pull the chromosomes apart, the chromatids are pulled to opposite ends of the cell
What happens in telophase?
Membranes form around the sets of chromosomes forming new nuclei
