Because the chromosomes of each parent undergo genetic recombination
during meiosis, each
gamete, and thus each zygote, will have a unique genetic blueprint encoded in its DNA.
During meiosis, the genome of a diploid germ cell, which is composed of long segments of DNA packaged into chromosomes, undergoes DNA replication followed by two rounds of division, resulting in haploid cells called
gametes.
Activity includes: • original cells in Prometaphase I showing bivalents and chiasma • cells in Prophase I showing chromosome line up
during independent assortment • resulting
gametes • (includes also - for an easier activity - cells in Interphase II showing cells after first round of division) Students to find matching cards (Prometaphase I, Prophase I and 4 resulting
gametes) Aim: to get a greater appreciation of the variety in
gametes created through crossing over and independent assortment
during meiosis Print, laminate, chop up all cards, mix them up, go!