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21 Cards in this Set
- Front
- Back
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Genetics |
The field of biology devoted to understanding how characteristics are transmitted from parents to offspring. |
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Heredity |
The transmission of characteristics from parents to offspring. |
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Allele |
Each of two or more alternative forms of a gene. |
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Dominant |
Masked, or dominated the factor for the other trait or pair. |
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Recessive |
Relating to heritable characteristics controlled by genes that are expressed in offspring only when inherited from both parents. |
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Genotype |
An organism's genetic makeup. |
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Phenotype |
An organism's appearance. |
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Heterozygous |
When the two alleles in the pair are different, the organism is Heterozygous. |
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Homozygous |
When both alleles of a pair are alike. |
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Hybrid |
The offspring of two plants or animals of different species. |
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Purebred |
Bred from parents of the same breed. |
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Punnett Square |
Diagram, to aid them in predicting the probable distribution of inherited traits in the offspring. |
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Probability |
The likelihood that a possible future event will occur in any given instance of the event. |
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Pedigree |
A diagram that shows the occurrence of a genetic trait in several generations of a family. |
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Genetic Carrier |
A person or other organism that has inherited a recessive allele for a genetic trait or mutation but does not display that trait or show symptoms of the disease. |
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Inbreeding |
The crossing or mating of plants or animals with close relatives. |
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Sex Linked Trait |
A trait that is determined by a gene found on one of the sex chromosomes, such as the X chromosomes or the Y chromosome in humans. |
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Incomplete Dominance |
A condition in which a trait in an individual is intermediate between the phenotype of the individual's two parents because the dominant allele is unable to express itself fully. |
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Codominance |
A condition in which both alleles for a gene are fully expressed. |
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F1 Generation |
The first generation of offspring obtained from an experimental cross of two organisms. |
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P Generation |
Parental generation, the first two individuals that mate in a genetic cross. |
