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11 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Trait |
A genetically determined characteristic |
Pink flower |
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Allele |
Different forms or versions of the same gene. They may be dominant or recessive |
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Dominant |
An allele which is always expressed even if only one is present. Shown by an upper-case letter |
A |
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Recessive |
An allele which is only expressed when two are present. Shown by a lower-case letter |
a |
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Genotype |
The particular alleles an organism possesses for a specific characteristic |
CC |
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Phenotype |
The observable characteristic of an individual resulting from it's genotype |
Curly tail from the genotype CC |
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Homozygous |
An individual with two alleles that are the same for a particular trait |
TT or tt |
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Heterozygous |
An individual with two alleles that are different for a particular trait |
Tt |
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Purebred |
An organism that is homozygous for a particular trait |
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Pedigree chart |
A diagram that shows the phenotypes of related individuals- like a family tree |
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Test cross |
A cross between an organism whose genotype for a certain trait is unknown, and an organism that is homozygous recessive for that trait. The unknown genotype can be determined from the offspring |
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