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13 Cards in this Set
- Front
- Back
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Heredity |
the passing of traits from parents to offspring |
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Trait |
a characteristic that an organism can pass on to its offspring through its genes |
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Genetics |
the scientific study of heredity ( how genes and traits are passed from parents to offspring .) |
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Gene |
the set of information that controls a trait ; a segment of DNA on a chromosome that codes for a specific trait |
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Dominant Allele |
an allele whose trait always shows up in the organism when the allele is present . |
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Recessive Trait |
an allele that does not show up when a dominant allele is present . |
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Punnett Allele |
a chart that shows all the possible combinations of alleles from a genetic cross. |
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Phenotype |
an organism physical appearance or visible traits |
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Genotype |
The alleles and organism ha s. For example Bb or bb |
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Homozygous |
Having two identical alleles for a trait |
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Heterozygous |
having two different alleles for a trait |
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Codominance |
a condition where neither of the two alleles of a gene is dominant or recessive . For example : if a bird is codominant for white and black feathers all alleles will be expressed in the phenotype |
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Fertiliztation |
the process in which an egg cell and a sperm cell join to form a new organism |
