an alternate form that a gene may have for a single trait; may be dominant or recessive.
describe a trait that covers over, or dominates, another form of that trait.
biological and chemical methods to change the arrangement of a gene's DNA to improve crop production, produce large volumes of medicine, and change how cells perform their normal functions.
the study of how traits are inherited through the actions of alleles.
the genetic makeup of an organism.
the passing of traits from parent to offspring.
describes an organism with two different alleles for a trait.
describes an organism with two alleles that are the same for a trait.
an offspring that was given different genetic information for a trait from each parent.
production of a phenotype that is intermediate between the two homozygous parents.
outward physical appearance and behavior of an organism as a result of its genotype.
occurs when a group of gene pairs acts together and produces a specific trait, such as human eye color, skin color, or height.
a tool to predict the probability of certain traits in offspring that shows the different ways alleles can combine.
describes a trait that is covered over, or dominated, by another form of that trait and seems to disapear.
an allele inherited on a sex chromosome and that can cause human genetic disorders such as color blindness and hemophilia.