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15 Cards in this Set
- Front
- Back
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Genotype |
The genetic composition of an organism - which genes are present |
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Phenotype |
Measurable appearance or characteristics of an organism |
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Gamete |
Sex cell |
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Somatic cell |
Body cell |
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Gene |
Section of DNA coding for a protein |
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Allele |
Alternative forms of a gene |
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Locus |
The position of a gene on a chromosome |
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Homologous |
Pair of chromosomes of the same length, controlling the same characteristics, one from each parent at fertilisation |
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Homozygous |
Genotype with both alleles the same |
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Heterozygous |
Genotype with different alleles |
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Dominant |
Allele which always expresses itself in the phenotype |
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Recessive |
Allele which only expresses itself when in pairs |
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Diploid |
Number of chromosomes in an adult cell (2n) |
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Haploid |
Number of chromosomes in a gamete (n) |
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Co-dominant alleles |
Alleles that contribute equally to the appearance of a characteristic |
