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homozygote and heterozygote |
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homozygote and heterozygoteTwo genetic possibilities for a fertilized egg. If the two sex cells (gametes) that fuse during fertilization carry the same form of a gene for a specific trait, the organism is said to be a homozygote for that trait. If the gametes carry differing forms of the gene, the result is a heterozygote. Because genes may be either dominant or recessive (see dominance and recessiveness), the genetic composition (genotype) of an organism cannot always be determined by the organism's physical appearance (phenotype). How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Mean ([+ or -] SD) for homozygote and heterozygote Mytilus allele frequencies in 3 regions of the northeast Pacific from Table 1 (number of sites per region in parentheses). |
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