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Genetics
Chapter 10
| Term | Definition |
|---|---|
| Genetics | Scientific study of heredity. |
| Fertilization | The process in sexual reproduction in which male and female reproductive cells join to forma new cell. |
| Trait | A specific characteristic of an individual. |
| True-Breeding (Pure Breeding) (Homozygous) | Having two identical alleles for a particular gene. |
| Hybrid | The offspring of crosses between parents with different traits. |
| Segregation | The separation of alleles during gamete formation. |
| Independent Assortment | One of Mendel's principles that states that genes for different traits that can segregate independently during the formation of gametes. |
| Gametes | Sex Cells. |
| Homozygous | Having two identical alleles for a particular gene. |
| Heterozygous | Having two different alleles for a particular gene. |
| Phenotype | The physical characteristics of an organism. |
| Genotype | The genetic makeup of an organism. |
| Dominant | An allele that hides the presence of another allele. |
| Recessive | An allele that is hidden by the presence of another allele. |
| Allele | One of a number of different forms of a gene. |
| Incomplete Dominance | A situation in which one allele is not completely dominant over another allele. |
| Codominance | A situation in which the phenotype produced by both alleles are completely expressed. |
| Punnett Square | A 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. |
| Polygenic Trait | A trait controlled by two or more genes. |
| Sex-linked Trait | The gene located on a sex chromosome. |
| Carrier | |
| Autosome | A chromosome that is not a sex chromosome; also called autosomal chromosome. |