![]() explain how meiosis promotes genetic diversity in the offspring at fertilization. ![]() explain why it is necessary for the number of chromosomes in the gametes to be half that of the parent cell. Given a diagram of male and female cells, each having two pairs of chromosomes, the student will: diagram the four possible gametes from the male and female cells. Understand why sexual reproduction is advantageous to individuals of a specific species. Sexual Reproduction, Variation, and Meiosis ![]() One of each pair is from MOM, other from DAD! There are 46 pieces of DNA or CHROMOSOMES in human beings ( diploid number) X Y 23 pairs of chromosomes. 1- How does DNA work? 2- How is a persons DNA passed on to their children? 3- What is the difference between how cells divide and humans reproduce? Passing Notes ![]()
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