Lesson 20.1 – Sexual Reproduction | Crossword
Across
4. | a sex cell that contains an individual’s genetic material |
6. | term used to describe genes that are not always expressed in offspring |
8. | a type of cell division in which a cell splits its own genetic material and then divides into two different cells |
9. | an ovum that has been fertilized by a sperm and which contains half of a mother’s genes and half of a father’s genes |
10. | term used to describe genes that are always expressed in offspring |
11. | the female sex cell, which combines with the sperm to create a zygote |
12. | a process that requires only one cell and which produces offspring identical to that cell |
Down
1. | the process by which the sperm and ovum combine to create a zygote |
2. | the process by which cells multiply |
3. | the transmission of parents' characteristics to their children |
5. | the male sex cell, which combines with the ovum to create a zygote |
7. | a type of cell division in which a cell copies its own genetic material and then divides into two identical cells |