Question

Split the chromosomes apart
to opposite ends of the cell. Draw
on your sheet of paper what this
model step looks like using colored
pencils. Label it “Anaphase II.”
12 – Draw circles around each set of
chromosomes. You should have 4
haploid cells, which are your sex
cells. Draw on your sheet of paper
what this model step looks like
using colored pencils. Label it
“Telophase II.”
DATA
Write a paragraph explaining how your model represents meiosis.

Answer 1

My model shows the final steps of meiosis: in the Anaphase II drawing I represented spindle fibers pulling sister chromatids apart toward opposite poles, which models how duplicated chromosomes are separated into individual chromatids. In the Telophase II drawing I circled four distinct cells and showed nuclear envelopes reforming and cytokinesis finishing the split, so that there are four haploid sex cells. Because meiosis I already separated homologous chromosomes, meiosis II separates sister chromatids in haploid cells, so the result is four cells each with one copy of every chromosome. I used different colored pencils to represent homologous chromosomes and mixed colors on some chromatids to show crossing-over and independent assortment, which explains why the four gametes are genetically different. Overall, the drawings demonstrate the reduction to haploid number and the production of four genetically unique sex cells, which is the purpose of meiosis.