Gregor Mendel and Genetics
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Created by:
johansjules on January 8, 2012
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19 terms
Terms | Definitions |
|---|---|
 Allele | different version of a gene |
| Dominant Allele | expressed allele in a heterozygote |
| Genetics | the science of heredity |
| Genotype | the alleles an individual inherits |
| Heterozygote | an organism with two different alleles |
| Homozygote | an organism with two alleles of the same type |
| Hybrid | the offspring of cross-pollination |
| Law of Independent Assortment | states that factors controlling different characteristics are inherited independently of each other |
| Law of Segregation | states that there are two factors controlling a given characteristic, one of which dominates the other, and these factors separate and go to different gametes |
| Phenotype | the expression of an organism's genotype |
| Pollination | fertilization process in the sexual reproduction of plants |
| Recessive Allele | allele that is not expressed in a heterozygote |
| ABO Blood Type | an example of a characteristic due to multiple alleles |
| Codominance | occurs when both alleles are expressed equally in the phenotype of the heterozygote |
| Incomplete Dominance | occurs when the dominant allele is not completely dominant |
| Meiosis | cell division involved in gamete formation |
| Polygenic Characteristic | are controlled by more than one gene, and each gene may have two or more alleles |
| Probability | the likelihood, or chance, that a certain event will occur |
| Punnett Square | a chart that allows you to easily determine the expected percents of different genotypes in the offspring of two parents |
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