Class Simulation

Today we started a Mitosis and Meiosis review simulation. The first time Mr.Finley was the director. First we did Mitosis. The first step is Interphase. The kids got in tight in a big Circe.

Then they got in chromosome and put their arms around each other, then another two kids came and were centreals, which is Prophase.

Next, Metaphase, they stayed in chromosome and line up in the middle of the desks. The kids that were centrals when to opposite sides of the kids and got string (spindle fibers) and attached them to the arms of the kids. Then the held onto the string. Each chromosomes is made up of two chromotid.

Next Anaphase, they centreals pull the chromotid to opposite polls of the cell. After they are

pulled and straight they are called chromosomes again.

Next Telophase, they took off the string and the two groups of 4 kids got into to circles. The cell membrane started to pinch.

Then we did Mieosis. Then Chris was the director. he put all the kids in a big bunch for Interphase.

Then Stephen and Jordan were the directors for Prophase 1. They put them into tetrads becasue of crossing over where the chromosomes share DNA. The chromosomes line up with other chromosomes and form homologous pairs.

Next Sambavi was the director for Metaphase 1. The homologous pairs get separated during this stage. The homologous pairs lined up in the center of the cell. Then the cenreals go to opposite polls of the cell. Then the spindle fibers (string) are attached to the homologous pairs (the kids in pairs). They are all lined on the Metaphase plate.

Next Rachel was the director for Anaphase1. The centreals pull the pairs apart to opposite polls.

Next Natalie was director for Telophase1. Then the kids got into a circle for Telophase 1 like they were in different cells. Then we had to stop since we were running out of time. We are going to finish it up on Monday. It was a fun and a good reviewing day. It helped everyone understand Mitosis and Meiosis better.

Johnny S