Chapter 7 Vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| carrier | in bio, an individual who has one copy of a recessive autosomal allele that causes disease in the homozygous condition
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| sex-linked gene | gene that is located on a sex chromosome
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| X chromosome inactivation | process that occurs in female mammals in which one of the X chromosomes is randomly turned off in each cell
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| incomplete dominance | a condition in which a trait in an individual is intermediate between the phenotype of the individual's two parents because the dominant allele is unable to express itself fully
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| codominance | a condition in which both alleles for a gene are fully expressed
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| polygenic trait | trait that is produced by two or more genes
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| linkage map | diagram that shows the relative locations of genes on a chromosome
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| pedigree | a diagram that shows the occurrence of a genetic trait in several generations of a family
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| karyotype | image of all the chromosomes in a cell
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