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UNIT 3, CHPT 10

CHAPTER 10.3

QuestionAnswer
what is meiosis 1? the first division of meiosis, resulting in two cells
what is meiosis 2? the second division of meiosis, resulting in four cells
what are the stages of meiosis? prophase 1, metaphase 1, anaphase 1, telophase 1, cytokinesis prophase 2, metaphase 2, anaphase 2, telophase 2, cytokinesis
what is crossing over? when parts of genetic material are exchanged between nonsister chromatids
what is synapsis? the pairing and physical connection of chromosomes
what is tetrad formation? when homologs pair up with eachother
what is the synaptonemal complex? a zipper like structure that connects a chromosome to it's homolog, connecting along the length of the two
when does synapsis happen? prophase 1 of meiosis
what happens during synapsis? homologs line up along length. DNA molecules are broken at specific points. the synaptonemal complex forms, fusing the DNA breaks from each chromosome together
why is crossing over important? it creates genetic diversity
how many cells does meiosis result in? four cells
how many cells does mitosis result in? two cells
what type of division produces genetically identical cells? mitosis
what type of division produces genetically different cells? meiosis
Created by: SuperBugLover
 

 



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