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the passing of traits from parents to offspring |
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| a unit of genetic material that determines a trait |
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| strong form of a gene which is expressed even if a recessive gene is present |
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| the weak form of a gene which is not expressed when the dominant form is also present |
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| a trait that an organism actually shows |
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| gene combination that determines phenotype |
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| an organism that has 2 different genes for a trait |
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| longer sex chromosome, females have 2 X chromosomes, males have one X chromosome and one Y chromosome |
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| the shorter sex chromosome, males have one X chromosome and one Y chromosome |
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| a change in DNA or chromosomes, this can occur in body cells and sex cells, most mutations are not harmful |
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| a threadlike strand in the nucleus that controls cell activity and carries genetic material to pass traits to offspring, humans have 23 pairs of chromosomes |
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| the reproductive process that involves only one parent and produces offspring that are identical to the parent |
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| the reproductive process that involves two parents who combine their genetic material to produce a new organism, which differs from both parents |
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| the different forms of a gene |
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| to receive from one’s parents, such as a trait |
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| a diagram with 4 squares used to predict the possible combinations of genes for a trait inherited from 2 parents. |
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| the young of a person, animal, or plant |
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| having two of the same allels for a trait |
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| having 2 different alleles for a trait |
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| an organism that has 2 of the same alleles for a trait. |
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| the sex cells of an organism |
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