Meiosis part 2 Flashcards
Interphase 🡪
chromosomes replicate to form 2 identical sister chromatids
Prophase I:
each chromosome matches up with its homologous chromosome. This forms a tetrad (because it contains 4 chromatids).
An important events occurs in prophase I which is called…
crossing over.
Chromosomes may exchange portions of their information with their homologous pair. This produces new…
combinations of alleles.
Metaphase I 🡪
paired chromosomes line up in middle
Anaphase I 🡪
Anaphase I 🡪 spindles pull chromosomes to opposite ends
Telophase I & Cytokinesis I🡪
cell splits to
form 2 new cells, nuclear membrane forms around chromosomes
End Product:
Four daughter cells, none of which are identical, each with only half the chromatids it started out with.
Mitosis use:
Growth, Repair, Replacement
Meiosis use:
Sexual Reproduction
Mitosis Type of cell
Somatic (body)
Meisos Type of cell
Gametes (sex cells)
Mitosis # of DNA rep.
1
Meiosis # of DNA rep.
1
Mitosis # of cell divisions
1
Meiosis # of cell divisions
2
Mitosis # of daughter cells
2
Meiosis # of daughter cells
4
Mitosis Diploid/Haploid?
Diploid
Meiosis Diploid/Haploid?
Haploid
Mitosis Identical to or diff from parent
Identical
Meiosis Identical to or diff from parent
diffrent
Mitosis Identical to or diff from each other
identical
Meiosis Identical to or diff from each other
diffrent
