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Definition
| Alternatve forms of a gene for each variation of a trait of an organism. |
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Definition
| Fusion of male and female gametes. |
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Definition
| Passing on of characteristics from parents to offspring. |
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Definition
| When there are two identical alleles for a trait. |
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Definition
| Mendelian principle explaining that because each plant has two different alleles, it can produce two different types od gametes. During fertilization, male and female gametes randomly pair to produce four combinations of alleles. |
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Definition
| Outward appearance of an organism, regardless of its genes. |
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Definition
| Trait of an organism that can be mistaked by the dominant form of a trait. |
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Definition
| Exchange of genetic material between nonsister chromatids from homologous chromosomes during phase 1 of meiosis; Results in new allele combinations. |
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Term
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Definition
| Haploid female sex cell produced by meiosis. |
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Term
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Definition
| Cell with one of each kind of chromosomes; Is said to contain a haploid or n, number of chromosomes. |
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Definition
| Type of cell division where one body cell produces four gametes, each containing half the number of chromosomes as a parent's body cell. |
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Definition
| Pattern of reproduction that involves the production and subsequent fusion of haploid sex cells. |
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Term
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Definition
| Diploid cell formed when a sperm fertilizes an egg. |
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Term
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Definition
| Observed trait of an organism that masks the recessive form of a trait. |
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Term
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Definition
| Male and female sex cells; Sperm and eggs. |
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Term
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Definition
| Combination of genes in an organism. |
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Definition
| When there are two different alleles for a trait. |
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Term
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Definition
| Offspring formed by parents having different forms of a trait. |
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Term
| Law of Independent Assortment |
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Definition
| Mendelian principle stating that genes for different traits are inherited independently of each other. |
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Term
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Definition
| Transfer of male pollen grains to the pistil of a flower. |
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Term
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Definition
| Characteristic that is inherited; Can be either dominant or recessive. |
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Term
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Definition
| Cell with two of each kind of chromosomes; Is said to contain a diploid, or 2n, number of chromosomes. |
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Term
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Definition
| Major source of genetic variation among organisms caused by reassortment or crossing over during meiosis. |
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Term
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Definition
| Paired chromosomes with genes for the same traits arranged in the same order. |
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Term
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Definition
| Failure of homologous chromosomes to seperate properly during meiosis; Results in gametes with too many or too few chromosomes. |
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Term
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Definition
| Haploid male sex cells produced by meiosis. |
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