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