The yellow/green pair is Pair 1 and the red/blue is Pair 2.Ī chromosome is a tightly coiledstrand of DNA and within each chromosome there are many, many genes. Make the green and yellow chromosomes about four inches longand the red and blue pair about 6 inches long. Take one half of each ball and roll it between your hands toform an elongated piece like a snake. Take one stick of colored clay and divide it in half.ģ. You are going to create a diploid nucleus, which willcontain two pairs of chromosomes. This ovalrepresents one precursor sex cell of the Sevenia.

The boundary of the paperis the cell membrane. Place the large white oval paper in the center of yourtable. You will follow these procedures untilyou are able to complete the process without the need of instruction.ġ. Sevenia has a diploid chromosome with a number of four. Students you are going to study theprocess of meiosis by working with chromosomes from a mythical organism knownas Sevenia.

Students will view a simulation of Meiosis as presented onKrogh’s Biology CD-Rom Whyis there sometimes a mix of looking like both parents? Howdo we get to resemble one parent more than the other? Who do you look like, your mom oryour dad? 4 one-inch balls of modeling clayof four different colors: red, blue, yellow and green We are sure that more questions will arise as the lessonproceeds.Įach group will consist of three students What is a homologous chromosomeand how is it different from a chromotid? How do the chromosomes know whichside of the line they should be on to split? Whydoesn’t each gamete cell contain 23 pairs of chromosomes? Some of the questions we anticipate the students asking are as follows: We expect students to havedifficulty with the process of meiosis. Students will be acquainted with the terms DNA, genes,chromosomes and Students will have an understanding of mitosis and the processof mitosis inī. Students will be able to identify and differentiatebetween a somatic cell and aĪ. Students will be able to describe the differences between ahaploid cell andĬ. Students will describe the steps in the process of meiosisī. Students will understand thatmeiosis takes place in specialized cells in theĪ. Students will understand the process of meiosis in the geneticvariation ofī. Halfof the genetic information comes from the father and half from the motherĪ. Hereditaryinformation is contained within genes Understandideas about reproduction and hereditary Incorrect gamete formation in Punnett Squares Separation of sister chromatids (meiosis II)Ĭ. Separation of homologous chromosomes (meiosis I)ī. Student Misconceptions based on the research :Ī. Teachers: Joy Paul, Joy Bryson, Kathleen Tait, and PaulMcNally

Mitosis flip book 14