Mendelian Genetics Flashcards
Codominance
Situation in which both alleles of a gene contribute to the phenotype of an organism
Allele
One of a number of different forms of a gene
Dihybrid cross
crosses first-generation offspring of two individuals that differ in two traits of particular interest. For example, BB × bb
Dominant allele
An allele that is dominant over another allele
Fertilization
Process in sexual reproduction in which male and female reproductive cells join to form a new cell
F1 generation
Offspring of the p generation; first filial
F2 generation
Offspring of f1 generation
Gamete
Specialized cell in sexual reproduction
Gene
Sequence of DNA that codes for a protein and determines a trait
Genotype
Genetic makeup of an organism
Heterozygous
Term used to refer to an organism that has two different alleles for the same trait
Homozygous
Term used to refer to chromosomes that each have a corresponding chromosome from the opposite sex parent
Hybrid
Offspring of crosses between parents with different traits
Incomplete dominance
Situation in which one allele is not completely dominant over another
Independent assortment
Independent segregation of genes during the formation of gametes