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Genetics
science
| Term | Definition |
|---|---|
| Genetics | Study of heredity |
| fertilization | process in sexual reproduction in which male and female reproductive cells join to form a new cell |
| trait | specific characteristic of an individual |
| True breeding (pure) | |
| Hybrid | offspring of crosses between parents with different traits |
| Segragation | separation of alleles during gamete formation |
| independent assortment | one of Mendels principles that states that genes for different traits can segregate independently during the formation of gametes |
| Gametes | sex cell |
| homozygous | having two identical alleles for a particular gene |
| heterozygous | having two different alleles for a particular gene |
| phenotype | physical characteristics of an organism |
| genotype | genetic makeup of an organism |
| dominante | |
| recessive | |
| allel | One of a number of different forms of a gene |
| incomplete dominance | situation in which one allele is not completely dominant over another allele |
| codominance | situation in which the phenotypes produced by both alleles are completely expressed |
| punnet square | diagram that can be used to predict the genotype and phenotype combinations of a genetic cross |
| multiple allele trait | a gene that has more than two alleles |
| polygeni trait | trait controlled by two or more genes |
| sex-linked trait | gene located on a sex chromosome |
| carrier | |
| autosome | Chromosome that is not a sex chromosome |