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12 Cards in this Set

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heredity
passing of traits from parents to offsprings
dominate trait
character observed when at least one dominant allele for a trait is inherited
recessive trait
character observed when 2 recessive alleles form a trait are inherited
genes
segments of dna that carry heredity instructions located on chromosomes
alleles
alternate forms of a gene that determines the same characters
genotype
the inherited combination of alleles
phenotype
inherited characters of an organism
probability
mathematical chance that an event will occur
sex cell
egg or sperm; a sex cell carries half the chromosomes found in other cells in the body
homologous chromosomes
chromosomes with matching information;each chromosomeis composed of 2 chromatids,thus a homologous pain is made of 4 chromatids
meiosis
cell division that produces sex cells
sex chromosomes
chromosomes with genes that determine the sex of offspring