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Mendelian Genetics
| Question | Answer |
|---|---|
| Chromosomes Condense, Homologous chromosome's pair up and crossing over occurs | Prophase I |
| Spindle Forbes attach to chromosomes and centromeres and chromosomes line up on the equator | Metaphase I/II |
| Chromosomes start to move to opposite poles of the cell as spindle fibres contract | Anaphase I |
| Chromosomes reach the poles and the nuclear membrane reforms | Telophase I |
| Chromosomes condense and spindle fibres reform (no crossing over) | Prophase II |
| Centromeres divide and sister chromatids move to the poles as spindle fibre contracts | Anaphase II |
| chromatids (chromosomes) reach the poles and nuclear membrane reforms | Telophase II |
| What is mendels law of segregation? | Characteristics are determined by factors, and only one of each factor can be passed down by a parent |
| What is mendels law of independent assortment? | Inheritance of one trait, does not affect the inheritance of another trait |
| What are the 3 origins of variation | Independent assortment, crossing over and random fertilisation |
| Where doe independent assortment occur? | Metaphase I |
| Where does crossing over occur? | Prophase I |