| A | B |
| a mother has ____ chromosomes | 23 |
| fertilization | fusion of the sperm nucleus and the egg nucleus |
| Male pattern is____ | XY |
| Female pattern is ___ | XX |
| Fathers determine the ____ of the offspring | gender |
| PMS | pre menstrual syndrome |
| PID | pelvic inflammatory disease |
| autosomes has _____ pair | 22 |
| puberty | maturity of the sex organs |
| menarche | formation of the first egg |
| menopause | ovaries become inactive |
| scrotum | double sac that the testes are held within |
| sperm is manufactured in the ____ | tubules |
| testes | paired oval glands that drop into the scrotum |
| When does the testes form ? | during the 7th month |
| spermatogensis | process of making the sperm |
| bladder sphincter muscle | closed when the sperm is released |
| prostrate gland | doughnut shaped gland |
| penis consists of _____ | 3 layers of muscle tissue |
| prepuce | foreskin |