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S7L3.c

Heredity,selective breeding

TermDefinition
multiple alleles when there are more than two alleles for a specific trait
3 the number of alleles you can possibly inherit from your parents for blood type (A,B,O)
codominance when dominant and recessive traits are combined in the heterozygous state and both traits are expressed at the same time
polygenic inheritance when a trait is controlled by more than one gene and a variety of phenotypes are seen
incomplete dominance when dominant and recessive traits are combined in the heterozygous state and result in a blending of the traits
incomplete dominance example red flowers X white flowers ---> pink flowers
codominance example red flowers X white flowers ---> red & white spotted flowers
polygenic inheritance example eye color, skin color, height
hybridization breeders cross two genetically different individuals and the organism that results has the best traits from both parents
artificial selection another term for selective breeding
inbreeding involves crossing two organisms that have similar characteristics (parents have same or similar sets of alleles)
death, infertility, genetic disorders negative aspects of inbreeding
selective breeding the process of selecting organisms with desired traits to be parents of the next generation
a defective gene the science behind the incredible muscle mass in the super cows
Created by: janicebryan