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A gene is a functional unit on DNA. A gene codes for a protein. |
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A threadlike strand of DNA in the cell nucleus that carries the genes in a linear order. It is a structure that DNA wraps around. |
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is one member of a pair or series of different forms of a gene. They differ mainly in there peptide chain sequences. |
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In gentics the genotype is the actual genetic make-up of a trait, as opposed to the physically expressed trait (phenotype). |
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The observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences. |
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A reproductive cell having the haploid number of chromosomes, especially a mature sperm or egg capable of fusing with a gamete of the opposite sex to produce the fertilized egg. |
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is a diagram that is used to predict an outcome of a particular cross or breeding experiment. |
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When homologous chromosomes enter different gametes, there is no way of telling which chromosome (and, therefore, which genes) will end up in which gamete. |
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A process occurring during meiosis wherein two chromosomes pair up and exchange segments of their genetic material. |
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The process of random segregation and assortment of chromosomes during anaphase I of meiosis resulting in the production of genetically unique gametes. |
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is a two-part cell division process in organisms that sexually reproduce. |
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is the process in which an egg and a sperm cell come together to form a zygote, beginning the series of events that can result in pregnancy. |
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is the initial cell formed when two gamete cells are joined by means of sexual reproduction. |
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trait is a genetic trait that manifests when only one copy of the gene is present. |
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trait is one caused by a recessive gene |
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