heredity
passing genetic traits from patient to offspring
dominate trait
the first trait observed in the first generation
recessive trait
a trait that reappears in the second generation
gene
one set of instructions
allele
one of the alternative forms of a gene
phenotype
an organisms appearance
genotype
the entire genetic makeup of an organism
probability
likelihood that some thing will happen
homo chromosomes
chromos that have the same sequences
meiosis
a process in cell division
sex chromo
on pair of chromos that determine the sex of an individual
pedigree
a diagram that shows the occurrence of a genetic trait