11.3 genetics Flashcards
(8 cards)
Autosomal dominant
can be passed on even with one copy of the mutation in the cell
autosomal recessive
when and inividual inherits two copies of a mutated gene from a parent.
sex-linked traits
characteristics of an individual that are based on the X and Y chromosone
carrier
a hetrozygous genotype that has a mutated gene, but is not affected by it or it doesn’t show in the phenotype
x-inactivation
the process where one of the two X chromosomes in female mammals is randomly inactivated in each cell. inactivated genes are turned into barr bodies.
pedigree
a diagram used to show the genetic differencation or passing down of genes over generations.
what is the difference between a gain of function and a loss of function in mutations?
a gain of function in a mutation typically creates or starts creating something where it isn’t supposed to.
a loss of functions mean it doesn’t create enough or any of what it’s supposed to .