Meiosis

Description

Mind Map on Meiosis, created by Cora B. on 09/02/2018.
Cora B.
Mind Map by Cora B., updated more than 1 year ago
Cora B.
Created by Cora B. about 6 years ago
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Resource summary

Meiosis
  1. prophase I
    1. chromosomes condense
      1. homologous chromosomes synapse
        1. nuclear envelope breaks down
          1. mitotic spindle forms
            1. metaphase I
              1. homologous pairs of chromosomes line up on the metaphase plate
                1. anaphase I
                  1. the two chromosomes (each w/ two chromatids) of each homologous pair separate and move toward opposite poloes
                    1. telophase I
                      1. chromosomes arrive at spindle poles
                        1. prophase II
                          1. chromosomes condense
                            1. spindle forms
                              1. nuclear envelope disintegrates
                                1. metaphase II
                                  1. individual chromosomes line up on the metaphase plate
                                    1. anaphase II
                                      1. sister chromatids separate and move as individual chromosomes toward the spindle poles
                                        1. telophase II
                                          1. chromosomes arrive at the spindle poles
                                            1. spindle breaks down
                                              1. nuclear envelope re-forms
                                2. How do the daughter cells compare genetically to the parent cell?
                                  1. chromosome number is reduced by half
                                    1. haploid cells produced are genetically different from one another and from the parent cell
                                      1. genetic differences result from
                                        1. crossing over
                                          1. random separation of homologous chromosomes
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