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Bio Meiosis Unit
Meiosis quiz 2017
| Term | Definition |
|---|---|
| duplicate | replicate |
| gonads | ovaries or testes |
| gonads | reproductive organs |
| gametes | egg or sperm |
| gametes | sex cells |
| meiosis | reduction division |
| where meiosis occurs | in the gonads |
| meiosis | cell division to produce sex cells |
| diploid | 2n, normal body cell |
| haploid | n, sex cell |
| primary sex cell | 2n, cell that will divide by meiosis, found in the gonads |
| In humans, 23 pairs = 46 chromosomes | Normal cell |
| In humans, 23 chromosomes (not paired) | are found in a Sex Cell |
| homologous chromosomes | one pair of of chromosomes |
| tetrad | two pairs of "sister" homologous chromosomes |
| synapsis | when sister chromosomes join together to form a tetrad |
| crossing over | genetic material mixes when chromosomes are in tetrads |
| Prophase 1 | genetic variation can occur when chromosomes form tetrads in this phase |
| Metaphase 1 | genetic variation can occur when chromosomes line up randomly in this phase |
| Independent assortment | Random assortment |
| fertilization | egg and sperm meet |
| zygote | New cell formed when egg and sperm meet |
| asexual reproduction | clone cells are made by mitosis |
| 2 ways genetic variation occurs | crossing over and independent assortment |
| cells produced by meiosis | sex cells or gametes |
| cells produced by mitosis | normal body cells or clones |
Created by:
Freshmensphs