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19 Cards in this Set
- Front
- Back
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asexual reproduction
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production of new organisms from one parent
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base
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a molecule that appears in pairs on a DNA strand
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cell division
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the process by which two cells form from one cell
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DNA
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a substance in chromosomes that directs the cell's activities
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dominant gene
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hides the effect of a recessive gene
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fertilization
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when egg and sperm cells join
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gene
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a section of DNA that controls a trait
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heredity
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the process in which traits pass from parents to offspring
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hybrid
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an organism with one dominant and recessive gene for a trait
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inherit
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to receive from one's mother or father
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meiosis
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the process that produces cells with half the number of chromosomes as the parent
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mitosis
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the process that produces new identical nuclei
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mutation
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a change that occurs in DNA
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purebred
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an organism with two dominant or two recessive genes for a trait
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recessive gene
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a gene whose effect is hidden
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sex cell
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an egg or sperm cell
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sexual reproduction
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production of a new organism by two parents
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trait
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a characteristic of an organism
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zygote
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the offspring celled formed after fertilization
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