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14 Cards in this Set

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Heredity
the passing on of traits from parents to child
Traits
The characterisitcs that are passed from generation to generation
hair color is an example
Gametes
sex cells
the sperm is an example
Fertilization
the uniting of male and female gametes
23 chromosomes plus 23 chromosomes
Dominant Trait
The trait which masks all others
signified by using a capital letter (B)
Recessive Trait
The trait which is masked by the dominant gene
signified by using a smaller case letter (b)
genotype
The gene combination that an organism contains
Bb
phenotype
The way in which an organism looks and behaves
brown hair
homozygous pair
both alleles are the same in the gene pair
BB,bb
heterozygous pair
two alleles differ from each other
Bb
Law of Segregation
During meiosis,gametes genes are seperated, then they ramdomly pair during fertilization
Law of Independent Assortment
Genes for different traits are inherited indepdently of each other
Law of Dominance
Dominant genes will mask over recessive genes. The recessive trait will only show when bothe genes of the pair are recessive
Hybrid
offspring formed by parents haveing different forms of a trait
short pea plant crossed with tall pea plant