Mitosis and Meiosis
Mitosis and Meiosis
Terms
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copy deck
- cell cycle
- G1, S, G2, then M
- mitosis of a haploid cell
- basically the same as witht the diploid cell, except the amount of chromosomes at the end
- meiosis part two
- second phase continues with Prophase II (duplicate centrioles, thats it), Metaphase II (chromosomes line up in middle, like mitosis), Anaphase II (chromatids are pulled apart), Telphase II (nucleur envelope now forms) four haplod cells is final result
- Meisosis
- sexual reproduction: make gametes (egg & sperm) only germ cells, 1 cell makes 4 cells
- Anaphase
- Chromatids pulled apart
- meoisis phases
- goes through PMAT twice, only starts with a diploid cell, goes through Prophase I, Metaphase I (aligns up in a nonlinear line, not in single file 'homologous pairs'), Anaphase I (chromosomes, not chromatid, are pulled apart), Telophase I (no reformation of nuclear envelope) end up with two haploid cells
- PMAT
- Prophase Metaphase Anaphase Telophase,
- diploid during mitosis
- goes through S phase, and it copies DNA, then it gets held on by a centromere, those copies are called chromatids, it performs cytokinesis in animal cells, in plants, a cell plate grows between them
- Mitosis
- cell division, more cells, all cells use mitosis, 1 cell makes two identical cells
- Metaphase
- Forms the mitotic spindle, chromosomes align in the middle
- cytokinesis
- splits cells apart
- during meiosis
- 1 diploid becomes 4 haploids, PMAT I and PMAT II
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- Haploid
- only one type of chromosomes
- Diploid
- two of each type of chromosomes, a mommy copy and a daddy copy
- Telophase
- chromatids gather at opposite sides, nucleur envelopes start to form, chromosomes turn back to heterochromatin (uncondenses), cytokinesis begins
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- Prophase
- nucleur envelope disintergrates, chromosomes condense, centrioles seperate
- during mitosis
- 1 diploid becomes 2 diploid, 1 halpoid becomes two haploids, Prophase Metaphase Anaphase Telophase, or PMAT