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Honors List 10
Unit 5
| Term | Definition |
|---|---|
| Law of Segregation | states that each set of homologous chromosome randomly separate during meiosis, leading to new genetic combinations |
| Homozygous | individuals with the same alleles, ex. AA |
| Heterozygous | individuals with different sets of alleles, ex. Aa |
| Alleles | The different forms (i.e. versions) of a gene, ex. blue eyes and brown eyes. |
| Dominant | always expressed the trait (e.g. DD or Dd) |
| Recessive | needs both alleles to express the trait, more rare (e.g. Dd) |
| Gene | section of DNA that codes for a trait, ex. eye color |
| Offspring | the next generations, the "babies, pups, etc" |
| Meiosis | cell division that starts with 2N ends with 1N |
| True or pure bred | all alleles are homozygous, like Dalmatian dogs |
| Hybrid | alleles are heterozygous, like a mixed dog or mutt. |
| Phenotype | physical traits ex. fur lengths, height, skin color |
| Genotype | genetic make |
| Carrier | an individual that has the recessive allele, ex. Hh |
| Law of Independent Assortment | states that each set of allele pairs randomly separate during meiosis, leading to new genetic combinations. |
| Law of Dominance | states that some alleles are dominant while others are recessive |
| Recombination | new genetic combination created during crossing over |
| Crossing over | exchange of genetic materials during Prophase I of meiosis, also known as chiasmata. |