Meiosis
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11 terms
Terms | Definitions |
|---|---|
 zygote | first cell of new organism |
| human cells | sex cells, or gametes (egg or sperm cells) have one set of chromosomes |
| zygotes would be 4n | If gametes were diploid what would happen after fertilization? |
| Meiosis | requires 2 nuclear divisions; homologous chromosomes; each chromosomes duplicates to form sister chromatids ( gene. identical) |
| Homologous chromosomes | chromosomes that were inherited from different parents |
| Meiosis I | halves the number of homologous pairs chromosomes and shuffles genetic info; replicated chromosomes condense and line up; crossing over; cytoplasm divides |
| meiosis II | produces 4 haploid cells; |
| genes | segments of DNA |
| Meiosis II Result | Four non-identical (gene. diff) haploid daughter cells |
| Meiosis I Results | 2 haploid cells; gene diff; but still 2 sister chromatids or each chromosome |
| 8 chromosomes | If a parent cell has 16 chromosomes and undergoes meiosis, each resulting cell will have how many chromosomes? |
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