homozygote and heterozygote

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الإنجليزية - الإنجليزية
Two 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)
homozygote and heterozygote
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