Genetics Flashcards
Genetics
The scientific study of heredity
Alleles
The different forms of a gene (L or l)
Traits
Physical characteristics of organisms
Fertilization
The joining of egg and sperm
Recessive allele
An allele whose trait is masked in the presence of a dominant allele
Genes
Factors that control traits
Hybrid (Heterozygous)
An organism with two different alleles for a trait (Ll)
Heredity
The passing of traits from parents to offspring
Dominant allele
An allele whose trait always shows up in an organism
Purebred (Homozygous)
The offspring of many generations that have the same trait (LL or ll)
Phenotype
Physical characteristics (ex. Yy –> Yellow body)
Genotype
Genetic makeup (ex. Yellow Body –> Yy or YY)