Question

Simulate meiosis by drawing

One pair of chromosomes and no crossing over

Instructions:

• Set up your cell. The cell you start with should be:

  • A diploid cell

  • It should contain 1 pair of homologous chromosomes

  • It should be in G1 of the cell cycle, before DNA replication occurs

  • Be sure to show 2 genes that are both heterozygous .

Go through the steps of meiosis. Be sure to show and label these in your pictures:

• Label homologous chromosomes and sister chromatids

• Interphase

  • G1

  • S

  • G2

• Meiosis I (show where the chromosomes are)

• Remember: No crossing over in this simulation!

  • Prophase I

  • Metaphase I

  • Anaphase I

  • Telophase I

• Meiosis II (now you should have 2 cells)

  • Prophase II

  • Metaphase II

  • Anaphase II

  • Telophase II

• The resulting gametes. What is the ploidy of these cells?

Answer 1

Metaphase I Anaphase I telophace D B 4 gametes after meiosis I ploidy = 2n. after meais I ploidy an