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10 Cards in this Set
- Front
- Back
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gene |
length of DNA that codes for a protein. |
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homologous chromosome |
a pair in each chromosome |
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locus |
the position of a gene on a chromosome |
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allele |
a different version of a gene. most plants and animals have two copies of each gene, one from each parent |
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phenotype |
the characteristics displayed by an organism |
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genotype |
the alleles a person has (BB, Bb or bb for eye colour) |
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dominant allele |
an allele whose characteristic appears in the phenotype even when there's only one copy. dominant alleles are shown by a capital letter |
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recessive allele |
an allele whose characteristic only appears in the phenotype even when theres only one copy. shown by lower case letters |
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heterozygote |
an organism that carries two different alleles for a certain characteristic |
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homozygote |
an organism that carries two copies of the same allele for a certain characteristic |
