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11 Cards in this Set
- Front
- Back
diploid
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a cell with two of each kind of chromosome
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haploid
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a cell with one of each kind of chromosome
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homologous chromosomes
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paired chromosomes wiht genes for the same traits arranged in the same order
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meiosis
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period of nuclear cell division in which two daughter cells are formed, each containing a complete set of chromosomes
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sperm
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haploid male sex cells produced by meiosis
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eggs
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haploid female sex cell produced by meiosis
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zygote
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diploid cell formed when a sperm fertilizes an egg
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sexual reproduction
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pattern of reproduction that involves the production and subsequent fusion of haploid sex cells
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crossing over
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exchange of genetic material between non-sister chromatids from homologous chromosomes during prophase I of meiosis; results in new allele combinations
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genetic recombination
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major source of genetic variation among organisms caused by reassortment or crossing over during meiosis
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nondisjunction
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failure of homologous chromosomes to separate properly during meiosis; results in gametes with too many of too few chromosomes
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