Define polygenic inheritance
describes a mode of inheritance in which more than one gene affects a trait
What describes a mode of inheritance in which more than one gene affects a trait?
polygenic inheritance
Define continuous variation
variation in a trait that occurs along a continuum such as the trait of height in human beings
What is variation in a trait that occurs along a continuum such as the trait of height in human beings?
continuous variation
Define qualitative trait
a trait that is determined by the effects of more than one gene
What is a trait that is determined by the effects of more than one gene?
qualitative trait
What is pleiotropy?
o An allele that has more than one effect on phenotype
Define incomplete dominance
describes a case in which two or more alleles of a gene do not display clear dominance
What describes a case in which two or more alleles of a gene do not display clear dominance?
incomplete dominance
Define codominance
describes a case in which two or more alleles of a gene are each dominant to other alleles but not to each other
What describes a case in which two or more alleles of a gene are each dominant to other alleles but not to each other?
codominance
What are the sugars exhibited by type A blood?
galactosamine
What are the sugars exhibited by type B blood?
galactose
What are the sugars exhibited by type AB blood?
Both galactose and galactosamine
What are the sugars exhibited by type O blood?
None
What blood type can a type A blood type receive?
Receives A and O
What blood type can a type B blood type receive?
Receives B and O
What blood type can a type AB blood type receive?
Universal Receiver
What blood type can a type O blood type receive?
Receives O
What blood type can a type A blood type donate to?
Donates to A and AB
What blood type can a type B blood type donate to?
Donates to B and AB
What blood type can a type AB blood type donate to?
Donates to AB
What blood type can a type O blood type donate to?
Universal Donor
Define ABO Blood Group
a set of four phenotypes produced by different combinations of three alleles at a single locus
What is a set of four phenotypes produced by different combinations of three alleles at a single locus?
ABO Blood Groups
Define epistasis
interaction between two nonallelic genes in which one of them modifies the phenotypic expression of the other
What is the interaction between two nonallelic genes in which one of them modifies the phenotypic expression of the other?
epistasis