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25 Cards in this Set
- Front
- Back
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Karyotype |
picture fo all human chromosomes |
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sex-linked gene |
genes located on the sex chromosome |
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pedigree |
a chart used to trace pheno and geno types |
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polygenic |
many genes interact to produce a single trait |
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incomplete dominance |
an "in between" phenotype |
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codominence |
equal dominance of alleles |
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carrier |
a persom who is heterozygous recessive for a genetic disorder |
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gamete |
sex cells (sperm and egg) |
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homologous chromosome |
chromosomes that carrie the same gene |
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autosomes |
chromosomes 1-22 |
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sex chromosomes |
pair 23 |
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gene |
Mendel's "discrete units" |
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allele |
different versions of a trait |
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homozygous |
having two of the same alleles |
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heterozygous |
having two different alleles |
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genotype |
the allele pair |
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phenotype |
the expression of a trait |
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dominant |
the trait that is visible; physical appearance |
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recessive |
a hidden trait |
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Punnett Square |
a method of determineing possible offspring genotypes |
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crossing over |
recombination of alleles in meiosis |
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monohybrid cross |
punnet square with only one trait observed |
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dihybrid cross |
punnet square with two traits observed |
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Law of Segregation |
an organism gets two copies of a gene for a trait one from each parent |
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Law of Independent Assortment |
allele pairs separate independently from one anohter through gameotgnesis or meiosis |
