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Date: February 17th, 2017 Aim # 52: How do organisms reproduce? Do Now: 1) What is cancer? 2) What is the difference between a benign and malignant tumor? 3) What is metastasis? 4) Name three methods of treatment. HW: 1)Daily Review of Class Notes Aim #52: How do organisms reproduce? 1) Who thinks they can define Reproduction? The process by which living things produce other living things like themselves. The production of offspring. 2) What are Chromosomes? Found in Nucleus XX XX Structures found in the nucleus of our cells that determine our physical characteristics (traits). They have the genetic information (DNA). Chromosomes need to be passed onto the offspring. They are the “instructions” for the cell. cell 3) Types of Reproduction: Asexual Reproduction XX XX Parent XX XX Clones Offspring XX XX Clones Genetic Information (Chromosomes) Characteristics of Asexual Reproduction: 1) Is the creation of a new individual from only 1 parent. 2) Genetic information of offspring is identicalto the parent. Do the cells in our body undergo asexual reproduction? Yes 4) When do the cells of our body undergo Asexual Reproduction? Growth Repair Some types of Asexual Reproduction: (Mitosis) 5) Some organisms are capable of Regeneration Development of lost parts or growth of an entire new organism from part of original organism Examples: Sea star and Planaria 6) Identify and define the types of Asexual Reproduction below: Binary Fission: The splitting of a one-celled organism into 2 equal size offpsring. Example: Bacteria & Amoeba 6) Identify and define the types of Asexual Reproduction below: Budding: a new cell is formed from a tiny bud on the parent cell (cytoplasm divides unequally) Examples: Yeast (unicellular), hydra (multicellular) Brain Pop: Asexual Reproduction 3 minute video https://www.brainpop.com/science/cellular lifeandgenetics/asexualreproduction/ 7) What is Sexual Reproduction? It involves the joining of two cells to begin the development of a new individual. These special cells are called: Sex Cells (Gametes) 8) What are the names of these sex cells? Egg cell (Female) Sperm Cell (Male) 9) The joining of a sperm cell with an egg cell is called fertilization. Sexual Reproduction XX + XX Egg Sperm XX XX Offspring A fertilized egg cell is called a Zygote Characteristics of Sexual Reproduction: 1) Is the creation of a new individual from 2 parents. 2) Offspring are not genetically identical to the parents. 10) We get half our genetic information from mom and half our genetic information from dad 23 23 Males: Sperm cells Females: Egg cells 11) Asexual vs. Sexual Reproduction 1 Parent Offspring are identical Bacteria, Amoeba, Body Cells Asexual Reproduction Produce Offspring Critical for survival of the species 2 Parents Offspring are not identical Humans, Dogs, Plants Sexual Reproduction