Chapter 15 Flashcards
Heritable feature of an organism that varies among individuals(freckles present)
Character
Variety or state of a character, such as a white flower or no freckles
Trait
Functional unit of heredity
Nucleotide sequence determines the primary structure of all polypeptides and proteins
Structural gene
Alternative form of a gene which occurs at the same location on the homologous chromosomes
Allele
Actual alleles present for a given gene on homologous chromosomes
Expressed with letters
Genotype
Outward expression of a genotype or what the trait actually looks like
Phenotype
Genotype with the same alleles
Homozygous
Genotype with different alleles
Heterozygous
Allele expressed in a phenotype when a genotype is heterozygous
Dominant allele
Allele not expressed in the phenotype when genotype is heterozygous
Recessive allele
Genetic condition which occurs when neither allele is dominant over the other but are expressed
Co dominant
Ancestral line
Pedigree