| A | B |
|---|
| meiosis | cell division that results in reducing a cell from diploid to haploid |
| mitosis | the process of cell division that results in two identical cloned nuclei |
| oogenesis | process of germ cells becoming eggs |
| spermatogenesis | process of germ cells found in the testes becoming gametes |
| ovum | unfertilized egg |
| sperm | human male gamete |
| independent assortment | process in Anaphase I that the homologous chromosomes separate randomly |
| crossing-over | the process in Prophase I that the homologous chromosomes exchange genes or pieces of chromosomes |
| nondisjunction | the process in meiosis that chromatids do not separate during Anaphase II |
| trisomy | a cell that ends up with and extra chromosome because the chromatids failed to separate during Anaphase II |
| monosomy | a cell that is missing a chromosome because the chromatids during Anaphase II did not separate properly |
| translocation | happens during Prophase I when crossing over is not equal and a piece of a chromosome breaks over and attaches to another chromosome |
| deletion | the loss of a piece of chromosome during crossing over |
| sexual reproduction | the process when two parents combine gametes to form a zygote |
| egg + sperm | zygote |
| number of cells resulting from one germ cell during spermatogenesis | four |
| number of cells resulting from one germ cell during oogenesis | one |
