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16 terms

Heredity

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Heredity
the passing of traits from parents to offspring
Dominant Trait
the trait observed when at least one dominant allele for a characteristic is inherited
Recessive Trait
Trait that is apparent when two recessive alleles for the characteristic are inherited.
Genes
DNA segments that serve as the key functional units in hereditary transmission.
Alleles
different forms of a gene
Genotype
the inherited combination of alleles
Phenotype
an organism's physical appearance
Probability
the likelihood that a particular event will occur
Purebred
offspring of many generations that have the same traits
Hybrid
an organism with one dominant and one recessive gene for a trait
Meiosis
cell division that produces sex cells
Asexual Reproduction
the production of offspring from one parent
Sexual Reproduction
two cells from different parents unite to form the first cell of a new offspring
Sex cells
sperm and egg
Homologous Chromosomes
Chromosomes with matching information
Sex Chromosomes
The X and Y chromosomes