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Definition
| alternative forms of a gene for each variation of a trait of an organism |
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Definition
| exchange of genetic material between non-sister chromatids from homologous chromosome during prophase I of meiosis; results in new allele combinations |
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Definition
| cell with two of each kind of chromosome; is said to contain a diploid, or 2n, number of chromosomes |
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Definition
| observed trait of an organism that mask the recessive form of a trait |
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Definition
| haploid female sex cell produced by meiosis |
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Definition
| fusion of male and female gametes |
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Definition
| male and female sex cells, sperm and eggs |
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Definition
| major source of genetic variation among organisms caused by re-assortment or crossing over during meiosis |
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Term
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Definition
| branch of biology that studies heredity |
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Definition
| combination of genes in an organism |
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Definition
| cell with one of each kind of chromosome; is said to contain a haploid or n, number of chromosomes |
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Definition
| passing on of characteristics from parents to offspring |
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Definition
| when there are two different alleles for a trait |
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Term
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Definition
| paired chromosomes with genes fro the same traits arranged in the same order |
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Definition
| when there are two identical alleles for a trait |
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Definition
| offspring formed by parents having different forms of a specific trait |
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Term
| Law of independent assortment |
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Definition
| Mendelian principal stating that genes for different traits are inherited independently of each other. |
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Definition
| Mendelian principal explaining that because each plant has two different alleles, it can produce two different types of gametes. During fertilization, male and female gametes randomly pair to produce four combinations of alleles |
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Term
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Definition
| type of cell division where one body cell produces for gametes, each containing half the number of chromosomes in a parent’s body. |
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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 masked by the dominant form of a trait |
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Definition
| pattern of reproduction that involves the production of subsequent fusion of haploid cells. |
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Definition
| haploid male sex cells produced by meiosis |
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Definition
| characteristic that is inherited; can be either dominant or recessive |
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Definition
| diploid cell formed when a sperm fertilizes an egg |
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