Complementation Flashcards
there can be many ___ at the same ___ and many ___ acting on the same ___
alleles, locus
loci, trait
+ means
wild-type
different alleles are indicated how?
superscripts
2 homozygous individuals w/ different recessive alleles at the same locus will…
have heterozygous offspring with a recessive phenotype
often mutations at different loci can give….
identical or nearly identical phenotypes
suppose you have 2 recessive mutant strains w/ same phenotype. they could be due to…
mutations at the same locus
2 different loci acting on the same trait
double heterozygote offspring
2 individuals with recessive homozygotes at different loci can fix each other
normal phenotype
how to tell if the mutation is caused by one locus or different loci?
cross them
offspring of the mutant phenotype caused by 2 mutations at the same locus…
will have the same mutant phenotype
offspring of the mutant phenotype caused by mutations at 2 different loci…
will be wild type
complementation
when 2 recessive homozygotes produce wild-type offspring
when complementation occurs how many loci are involved?
2
noncomplementation is when the offspring…
look like the recessive parents
alleles at the same locus are called
complementation group
complementation group
mutations that don’t complement eachother
mutants lying within the same cistron (noncomplementation group)
