PG 30-32 GENETICS. NOTES AND VOCABULARY. Genetics - the study of heredity . Heredity - a set of characteristics received from parents. Raising useful plants and animals . Prevention and treatment of diseases . Discovering the secrets of life on Earth. Solving crimes .
NOTES AND VOCABULARY
True-breeding (purebred) - an organism with parents having the same traits.
Punnett Square - a process used to determine the probability of offspring traits.
Multiple alleles - a type of gene that is determined by more than 2 alleles.
Polygenic traits - traits for which the phenotype (appearance) depends on alleles in multiple genes.
One allele in a pair may mask the effect of the other
The two alleles for a characteristic separate during the formation of eggs and sperm
The alleles for different characteristics are distributed to reproductive cells independently.
(crossing of 2 different true-breds)
Work the Dihybrid Crosses on your own.