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Chapter 9
| Term | Definition |
|---|---|
| Genetics | The field of biology that studies how genes are transmitted from parent to offspring. |
| Heredity | The transfer of traits from parent to offspring |
| Trait | a genetically determined characteristic |
| Pollination | When pollen is transferred from the anthers to the stigma |
| Self-Pollination | When polisario occurs in the same plant |
| Cross- Pollination | Pollination between the flowers of two plants |
| True Breeding | Pure, always produce offspring with that trait |
| P Generation | The breeding parents |
| F1 generation | The offspring of the P generation |
| F2 Generation | The second filial generation |
| Dominant | A trait that masks or dominates another trait in the pair |
| Recessive | The trait that is dominated and has no control over the outcome |
| Law of Segregation | States that a pair of gametes is separated during the formation of gametes |
| Law of Independent Assortment | State that factors separate independently during the formation of gametes |
| Molecular Genetics | The study of structure and fiction of chromosomes and genes |
| Allele | Each of an alternate form of a gene |
| Genotype | An organisms genetic makeup |
| Phenotype | An organisms appearance |
| Homozygous | When both alleys i the pair are alike |
| Heterozygous | When two alleles in the pair are different |
| Probability | The likelihood that a specific event will occur |
| Monohybrid Cross | A cross which only one characteristic is tracked |
| Punnet Square | A diagram that shows possible genetic outcomes |
| Genotypic Ratio | The ratio of genotypes that appear in offspring |
| Phenotypic Ratio | The ratio of phenotypes that appear in offspring |
| Testcross | A table that shows the phenotype of an individual whom expresses a dominant trait |
| Complete Dominance | Where on allele is completely dominant over the other |
| Incomplete Dominance | When the phenotype is determined by dominant and recessive traits |
| Codominace | Occurs when both alleys in a gene are expressed in a heterozygous offspring |
| Dihybrid Cross | A cross when two characteristics are tracked |
Created by:
nwbs
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