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Genetics The scientific study of heredity
Gregor Mendel A monk in a monastery who experimented with genetics of pea plants and lived in Vienna Austria
Traits A characteristic that an organism can pass on to its offspring through its genes
Heredity The passing of traits from parents to offspring
P generation Parental generation
F1 generation Offspring of P generation
F2 generation offspring of F1 generation
Genes A segment of DNA on a chromosome that codes for a special trait
Alleles The different forms of a gene
Recessive alleles An allele that is masked when a dominant allele is present
Dominant alleles An allele whose trait always shows up in the organism when the allele is present
Hybrid An organism that has two different alleles for a trait; an organism that is heterozygous for a particular trait
Chromosome A doubled rod of condensed chromatin; contains DNA that carries genetic information
DNA Deoxyribonucleic acid; the genetic material that carried information about an organism and is passed from parent to offspring
Genotype An organisms genetic makeup, or allele combinations
Phenotype An organisms physical appearance, or visible traits
Heterozygous Having two different alleles for a trait (different)
Homozygous Having two identical alleles for a trait (the same)
Meiosis The process that occurs in sex cells by which the number of chromosome is reduced by half
Mitosis The stage of the cell cycle during which the cells nucleus divides into two nuclei and one copy f the DNA is distributed into each daughter cell
Punnett Square A chart that shows all the possible combinations of alleles that can result from a genetic cross
Probability The likelihood that a particular event will occur
Codominance A condition in which neither of the two alleles of a gene is dominant or recessive
Fraternal twin Separate genetic material
Identical twin Same genetic material
Clone An organism that is genetically identical to the organism from which it was produced
Created by: study~time