This PowerPoint lesson aligns with chapter 1.3 of the McGraw- Hill Ryerson ON grade 9 academic science textbook which outlines how living things reproduce sexually.

This lesson outlines:
- The creation of a zygote when female and male reproductive cells combine,

- The process of fertilization,

- The process of meiosis,

- The developmental stages of a zygote, and

- The different forms of sexual reproduction used by different species.

This lesson includes a discussion about genetic variation inherited from parents and consolidation questions throughout the lesson.