The study of heredity.

The set of characteristics passed on from parent to child.

A haploid cell used in sexual reproduction.

Transfer of pollen from a male plant to a female plant.

Organism with homozygous traits only.

A genetic variant of an organism.

Parental generation.

First generation of offspring.  Result of P cross.

Second generation of offspring.  Result of F1xF1 cross.

A trait that only needs one parent's copy to be visibly expressed.

A trait that needs both parents' copies to be visibly expressed.

Two chromosomes that determine biological sex - X and Y

Every chromosome excluding sex chromosomes.

A specific characteristic of an organism.

A sequence of DNA that codes for a protein.

The variety of a gene.

Chromosomes containing the same genes in the same order, one from each parent.

Physical appearance.

Genes present in an organism.

Having both recessive or both dominant alleles.

One dominant and one recessive allele.

The likelihood that a particular event will occur.

Crossing an organism with a dominant phenotype to a recessive homozygote in order to determine dominance/recessiveness of the unknown genotype.