| A | B |
|---|
| Cancer | physical condition in which a cell grows without control |
| tumor | ball of cells created by extra division of a cancer cell |
| benign tumor | a tumor that is only in the area where it began |
| metastasis | process of cancer cells spreading from one body area to another |
| malignant tumor | a tumor that has spread from its original site to other areas |
| gametes | sex cell, sperm or egg |
| egg | the female gamete |
| sperm | the male gamete |
| somatic cell | a cellthat is not a sex cell |
| haploid | having one copy of each kind of chromosomes |
| diploid | having two copies of each kind of chromosome |
| homologous chromosome | one of a matching pair of chromosomes thatcomes from each parent |
| fertilization | process of combining an egg cell and a sperm cell |
| zygote | diploid cell that results from fertilization |
| gonad | an organ that makes gametes |
| spermatogenesis | the process of making a sperm cell |
| testis | the male sex organ that produces sperm cell |
| oogenesis | the process of creating an egg cell |
| ovary | the female organ that makes egg cells |
