Chapter 5 definitions- Heredity
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| hereditary | The passing of traits from parent to offspring.
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| allele | A different from a gene may or have for a trait.
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| genetics | The science of how traits are inherited through alleles passed from one generation to another.
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| dominant | The form of a trait that appears to dominate ar mask another form of the same trait.
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| recessive | The form of a trait that seems to dissappear in a population but can reeapper depending on the way the alleles combine.
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| Punnet Square | A tool that shows how genes combine; used to predict the problability of types of offspring.
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| genotype | The genetic makeup of an organism for a trait.
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| homozygous | An organism that has two identical alleles for a trait.
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| heterozygous | An organism that has two different alleles for a trait.
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| phenotype | A physical trait that shows as a result of an organisms's particular genotype.
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| incomplete inheritance | The production of a phenotypee in an offspring that is intermediate to the phenotypes of its two homozygous parents.
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| multiple alleles | Having more than two alleles that control a trait.
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| polygenic inheritance | It occurs when groups of gene pairs act together to produce a specific trait.
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| sex- linked gene | An allele inherited on a sex chromosome.
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| pedigree | A diagram that shows the occurence of a trait in a family.
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| genetic engineering | Biological and chemical methods to change the cells DNA sequence to produce desirable traits or eliminate undesirable traits.
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| genome | A map of the location of individual genes of every chromosome of an individual.
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