non mendelian inheritance Flashcards
1
Q
what is penetrance
A
measure of expression of a trait
2
Q
what would a 50% penetrance mean for example
A
only 50% show the expected phenotype
3
Q
in non-medelian inheritance list 2 factors that contribute to disease
A
genetic modifiers and environmental factors
4
Q
what are genetic modifiers
A
genes which have an effect on the expression of another gene
5
Q
what is epigenetic modification
A
heritable changes in gene function
6
Q
is epigenetic modification explained by changes in dna sequencing?
A
NO
7
Q
what is uniparental disomy
A
which is when you inherit 2 chromsomes from one parent and none from the other
