Mitosis and Meiosis March 29 th 2016. Shape of the Day Lecture (15 minutes) Activity (10 minutes) Kahoot (10 minutes) Projects (5 minutes) Individual/Group.

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Presentation transcript:

Mitosis and Meiosis March 29 th 2016

Shape of the Day Lecture (15 minutes) Activity (10 minutes) Kahoot (10 minutes) Projects (5 minutes) Individual/Group work time (Remaining time)

Learning Objectives Identify the products of mitosis and meiosis Define haploid (N) and diploid (2N) Identify if a cell as diploid or haploid Identify the parts of the human body where mitosis and meiosis occurs Describe (with an analogy) the process of sexual reproduction, mitosis and meiosis

What is this? Where’s the DNA? Why are they paired and numbered? Is this individual biologically male or female?

46 chromosomes (a bundle of DNA and histones) in most human cells Each type of chromosome, besides the sex chromsomes are paired. One of the chromosomes is from the mother, and one is from the father.

Is this cell diploid or haploid? How can you tell?

Diploid Diploid: cells with 2 complete set of chromosomes Haploid: cells with 1 set of chromosomes only

Do humans have haploid cells in their bodies? If so, where?

Human sex cells (eggs and sperm) are haploid!

All Cells are produced by Cell Division Mitosis or Meiosis

Cell division Mitosis: cell division that makes daughter cells with the same number and kinds of chromosomes as the parent cell (Identical daughter cells)

Cell division Meiosis: cell division that makes daughter cells with half the total chromosomes as the parent cell

Activity (5 mins) Draw a biological male and biological female Draw 23 chromosomes on each side You can decide whether the individual is XX or XY

Meiosis

Fun Facts! Strawberries are octoploid Seedless bananas and watermelon are triploid