A characteristic that an organism can pass on to its offspring through its genes

The scientific study of heredity

The set of information that controls a trait

The different forms of a gene

An allele whose trait always shows up in the organism when the allele is present

An allele that is masked when a dominant allele is present

An organism that has two different alleles for a trait

The joining of a sperm and an egg

The offspring of many generations that have the same trait

A number that describes how likely it is that an event will occur

A chart that shows all the possible combinations of alleles that can result from a genetic cross

An organism's physical appearance, or visible trait

An organism's genetic makeup, or allele combination

Having two identical alleles for a trait

Having two different alleles for a trait

A condition in which neither of two alleles of a gene is dominant or recessive

The process that occurs in the formation of sex cells by which the number of chromosomes is reduced by half

RNA that copies the coded message from DNA in the nucleus and carries the message into the cytoplasm

RNA in the cytoplasm that carries an amino acid to the ribosome and adds it to the growing protein chain

A change in a gene or chromosome

The process of selecting a few organisms with desired traits to serve as parents of the next generation

A selective breeding method in which two individuals with identical or similar sets of alleles are crossed

A selective breeding method in which two genetically different individuals are crossed

A person who has one recessive allele for a trait, but does not have the trait

An abnormal condition that a person inherits through genes or chromosomes

A chart or "family tree" that tracks which members of a family have a particular trait

A picture of all the chromosomes in a cell arranged in pairs

An organism that is genetically identical to the organism from which it was produced

The transfer of a gene from the DNA of one organism into another organism, in order to produce an organism with desired traits

The insertion of working copies of a gene into the cells of a person with a genetic disorder in an attempt to correct the disorder

All of the DNA in one cell of an organism