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| a characteristic that an organism can pass on to its offspring through its genes |
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| the passing of traits from parents to offspring |
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| The scientific study of heredity |
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| an organism that always produces offspring with the same form of a trait as the parent |
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| A segment of DNA on a chromosome that codes for a specific trait |
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Definition
| the different forms of a gene |
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| an allele that is masked when a dominant allele is present |
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Definition
| an organism that has two different alleles for a trait; an organism that is heterozygous for a particular trait |
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| the likelihood that a particular event will occur |
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| a chart that shows all the possible combinations of alleles that can result from a genetic cross |
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| an organism's physical appearance, or visible traits |
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| an organism's genetic makeup, or allele combinations |
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| having two identical alleles for a trait |
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| a condition in which neither of two alleles of a gene is dominant or recessive |
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| The process that occurs in sex cells (sperm and egg) by which the number of chromosomes is reduced by half |
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| RNA that copies the coded message from DNA in the nucleus and carries the message into the cytoplasm |
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| RNA in the cytoplasm that carries an amino acid to the ribosome and adds it to the growing protein chain |
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Definition
| having two different alleles for a trait |
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