- A site: carries amino acids
- Asexual reproduction: single parent passes all the genes to the offspring
- Autosomes: non-sex chromosomes
- Biotechnology: process of manipulating organisms
- Cancer: Mutations in genes inhibit cell division
- Dihybrid Cross: Cross with two characters
- DNA: adenine, thymine, guanine, cytosine
- DNA ligase: single- stranded DNA, sealed with enzymes
- dominant allele: fully expressed in offspring
- Double helix: twisted ladder with rigid rungs
- E site: Exit site
- Epistasis: ability of a gene location
- Fertilization: sperm fuses to the egg cell
- Gametes: meaning sperm and egg
- Gene cloning: Process to create significant sample of segments
- Gene thearpy: persons genes if that person possesses problem of gene kinds
- Genetic recombination: production of offspring with new gene from parents
- Genetics: study of heredity and variation
- Genomics: study of organism's entire genome
- Genotype: Organism's genetic make-up
- Hemophilia: having blood with inability to clot
- Heredity: transmission of traits from one generation to the next
- heterozygous: two different alleles for a trait
- Homologous Chromosomes: carry genes and control traits
- homozygous: two identical alleles for a particular trait
- hybridization: crossing of two true-breeding varities
- Karyotype: complete set of chromosomes
- life cycle: organism has a sequence of reproductive history through one generation
- linkage map: genetic map based on recombination
- Monohybrid Cross: cross with one character
- Mutations: alterations in the genetic material of the cell
- P site: carries polypeptide
- paternity: DNA fingerprinting
- phenotype: organism's physical traits
- Pleiotrophy: ability of gene to affect different traits
- recessive allele: no noticeable effect on offspring
- Recominants: new combinations of genes from parents
- ribosomes: made up of two subunits one large one small
- Sex Chromosomes: X and Y chromosomes
- Sexual reproduction: two parents contribute genes
- Sickle cell disease: mutant molecule that forms rods to lower blood levels
- Somatic Cell: Body cells of an organism
- Tay-Sachs disease: allele that codes for a dysfunctional enzyme to break down lipids
- Trait: heritable feature of an organism
- variation: difference in a trait