Classic Mendelian Genetics Flashcards
week 2 lect 3
1
Q
what is a character?
A
a heritable factor (gene) that varies between the individuals
2
Q
what is a trait?
A
the variations in a character
3
Q
name Mendel’s Postulates:
A
1 - Unit of genetic inheritance
2 - Dominance/Recessiveness
3 - Segragation
4 - Independent Assortment
4
Q
What is heritability?
A
the proportion of the variation in a population that is attributable to genetic differences
5
Q
how do you calculate heritability?
A
genetic variance / genetic variance + phenotypic variance
6
Q
What is the meaning of pleiotropy?
A
most genes have multiple phenotypic effects
7
Q
What is epistasis?
A
when a gene at one locus influences the phenotypic expression of a gene at a second locus
