Conjugation  in  Paramecium:  a  sexual  process  that  yields genetic
   recombination.
<Li> Meiosis of micronucleus produces 4 haploid micronuclei.
<Li> Three  micronuclei  disintegrate;  the  remaining  one  divides by
mitosis.
<Li> The  cells  exchange  one  micronucleus;  micronuclei  then  fuse,
becoming diploid.
<Li> Three   rounds   of  mitosis  without  cytokinesis  produce  eight
micronuclei.
<Li> The  original  macronucleus disintegrates. Four micronuclei become
macronuclei.
<Li> Two  rounds  of  cytokinesis  partition  one  macronucleus and one
micronucleus into each of 4 daughter cells.