Across
- 2. The organ where an embryo develops into a fetus
- 4. A unit of heredity transferred from parent to offspring
- 9. The passing on of physical characteristics genetically from parents
- 10. Reproduction involving a single parent without fusion of gametes
- 11. The female reproductive cell or egg
- 15. A structure of nucleic acids carrying genetic information
- 17. A change in the DNA sequence of an organism
- 18. The male reproductive cell
- 19. The cell formed by the fusion of two gametes
- 20. An organ that develops during pregnancy to nourish the fetus
Down
- 1. Cell division that results in daughter cells with half the chromosomes
- 3. Reproduction involving the fusion of male and female gametes
- 5. An unborn offspring in the early stages of development
- 6. An unborn offspring more than eight weeks after conception
- 7. The molecule that carries genetic instructions for life
- 8. The male reproductive organ that produces sperm
- 12. Cell division resulting in two identical daughter cells
- 13. The basic structural and functional unit of all living organisms
- 14. A mature reproductive cell such as a sperm or egg
- 15. An organism genetically identical to its parent
- 16. The female reproductive organ that produces eggs