Meiosis and Sexual Life Cycles: Variety of Sexual Life Cycles

a.      __of meiosis and fertilization varies with species

Three main types

                                                              i.      Humans and animals:
1.      __are only haploid cells
a.      Meiosis in __cellsà __à no further cell division prior to __à __divides by __

                                                              i.      Plants and some algae= __
1.      Diploid and haploid stages that are __
a.      Multicellular stage: __
       i.      Meiosis of __-->__
1.      Spore doesn’t fuse with other cell; instead, it divides __--> multicellular haploid stage called __-->give rise to __by mitosisà fusion at __-->diploid zygoteà next __generation

                                                              i.      Most fungi and some protists, including some algae
1.      After fusion of gametes to form __, meiosis occurs without __
a.      Meiosis produces not gametes, but __ that then divide by __and give rise to either __descendants or __ organism
b.      Haploid organisms carries out further __, producing cells that develop into __
2.      only diploid stage is the __

True or False:

    Either haploid or diploid cells can divide by mitosis, depending on the type of life cycle
                                                        
True False

      i.      Only diploid cells, however, undergo __because haploid cells are n and can’t be further reduced