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| the passing of traits from parent to offspring |
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| different forms that a gene may have for a single trait; can be dominant or recessive |
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| the study of how traits are inherited through the actions of alleles |
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| an offspring that was given different genetic information for a trait from each parent |
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| "describes a trait that covers over, or dominates, another form of that trait" |
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| "describes a trait that is covered over, or dominated, by another form of that trait and seems to disappear" |
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| a tool to predict the probability of certain traits in offspring that shows the different ways alleles can combine |
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| an organism's genetic makeup |
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| outward physical appearance and behavior of an organism |
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| describes an organism with two alleles that are the same for a trait |
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| describes an organism with two different alleles for a trait |
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| production of a phenotype that is intermediate between the two homozygous parents |
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| the molecule that carries genetic information in all living systems. The DNA molecule is formed in the shape of a double helix |
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| The small bodies in the nucleus of a cell that carry the chemical “instructions” for reproduction of the cell. They consist of strands of DNA wrapped in a double helix around a core of proteins. Each species of plant or animal has a characteristic number of chromosomes. |
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| occurs when a group of gene pairs acts together and produces a specific trait, such as human eye color, skin color, or height |
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| an allele inherited on a sex chromosome and that can cause human genetic disorders such as color blindness and hemophilia |
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| A piece of a DNA molecule that serves as the basic unit of heredity. Genes control the characteristics that an offspring will have |
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