Biology 211 Name _______________________________
Meiosis ICA
1. You are studying a diploid organism, where n=42. Complete the table below for
this organism.
Mitosis Meiosis I Meiosis II
Total number of
chromosomes per
cell at the
beginning of the
stage
Total number of
DNA molecules per
cell at the
beginning of the
stage
Ploidy at the
beginning
2n, diploid
Total number of
chromosomes per
cell at the end of
the stage
Total number of
DNA molecules per
cell at the end of
the stage
Ploidy at the end 2n, diploid
2. Compare and contrast mitosis, meiosis I, and meiosis II by indicating which of the
following events occur during each process?
Mitosis Meiosis I Meiosis II
Cell division?
Chromosome
reduction?
Genetic variation
produced?
Crossing over?
Random
distribution of
maternal and
paternal
chromosomes?
