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Mitosis
Mitosis science test
questions/ trems | answers/definitions |
---|---|
where dose mitosis take place | in human body (somatic) cells |
mitosis | chromosomes multiply and divide when the cell reproduces producing daughter cells that are identical to parent cell |
chromatin | uncoiled strands of DNA |
chromosomes | coiled chromatin; contains genes |
homologous pairs | chromosome pairs that are structurally similar and contain information for some genes; (can different expression of information on those genes) |
mitosis occurs in human body (somatic) cells | these are every cell but the egg or sperm |
How many cells dose somatic (body) cells have | 46 cells |
how many homologous chromosome pairs are there | 23 pairs |
diploid cells | contain all homologous pairs of chromosomes |
Interphase | chromosomes (in form of chromatin) and organelles replicate |
Mitosis | chromosomes divide |
Prophase | chromatin coils into chromosomes (hint: each chromosomes now is made up of 2 chromatids joined by a centromere) |
prophase | nuclear membrane disappears |
Metaphase | chromosomes move to the center of the cell (the equator) |
Anaphase | chromosomes divide and chromatids separate (pulled apart) |
anaphase | chromatides are pulled to opposite sides pulled by spindle fibers |
telophase | centroles and spindle fibers disappear |
telophase | chromaatids unwind back into chromatin |
telophase | neclear membrane reforms |
cytokinesis | cytoplasm starts to divide into new cells and parent cells divide |
cytokinesis | there are now 2 daughter cells that have DNA identical to the parent cell |