Heridity Quiz Flashcards
: the passing of traits from parents to offspring.
heridity
a characteristic that an organism can pass on to its offspring through its genes.
trait
: the scientific study of heredity.
genetics
: the process in which an egg cell and a sperm cell join to form a new organism.
fertilization
the offspring of many generations that have the same trait
purebred
: the set of information that controls a trait; a segment of DNA on a chromosome that codes for a specific trait
gene
the different forms of a gene
allele
: an allele whose trait always shows up in the organism when the allele is present.
dominant allele
an allele that is masked when a dominant allele is present.
recessive allele
: an organism that has two different alleles for a trait; an organism that is heterozygous for a particular trait.
hybrid
a number that describes how likely it is that an event will occur.
probability
a chart that shows all the possible combinations of alleles that can result from a genetic cross.
punnett square
: an organism’s physical appearance, or visible traits.
phenotype
an organism’s genetic makeup, or allele combinations.
genotype
having two identical alleles for a trait.
homozygous
