passing on of characterisitscs from parents to offspring
the herediable characterisitcs
study of heredity
physical appearance of the coresponding genotype.
have 2 alleles neither of which are dominant over the other.
have more than 2 allele choices.
have multiplying genes controlling the same trait.
sex- linked genes
because there is no heteorzygote with makes they always get the disease
2 copies of each chromosones all somatic cells
to produce more sperm and egg
why does meiosis happen in the sex cells?
the homologous chromosone dont divde evenly
get an extra chromone
one less chromosone.
becasue they reproduce in an area
why do most recessive diseases affect small populations?