Genetics Review Test your knowledge of genetics terms! Tools A B DNA Deoxyribonucleic acid Allele One member of a gene pair Mendel Father of Genetics Genotypes Actual gene makeup (letters) Traits Physical characteristics that are inherited Incomplete Dominance Neither of the genes in a pair masks the other Chromosomes Rod-shaped structures found in the nucleus of a cell Dominant Trait that masks another trait Phenotype Physical appearance of a trait Pea Plants Type of plant used in Mendel's experiments Heterozygous Gene pair that consists of a dominant allele and a recessive allele First Filial First generation after the P generation Second Filial Second generation after the P generation Geneticist Scientist who studies heredity Recessive Trait that seems to disapper when two different genes are present Law of Independent Assortment Each gene pair is inherited independently of other gene pairs for other traits Hydrid Another term for a heterozygous gene pair Purebred Another term for a homozygous gene pair Homozygous Gene pair that consists of two dominant or two recessive alleles P Generation Also known as the parental generation