Gappa 7th Science Chapter 2 & 3
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| passive transport | The movement of materials into a cell without the use of energy.
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| active transport | The movement of materials through a cell membrane using energy
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| mitosis | Produces only body cells that are identicle to the parent body cell
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| dominant allele | An allele whose trait always shows up in the organism, even if there is only one of that allele present
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| recessive allele | An allele that is hidden when a dominant allele is present
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| homozygous | Having two identical alleles for a trait
Example: HH or hh
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| heterozygous | Having two different alleles for a trait
Example: Tt
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| Punnett square | A chart that shows all the possible combinations of alleles that can result from a genetic cross.
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| diffusion | The process by which molecules move from an area in which they are highly concentrated to an area in which they are less concentrated.
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