Lethal Alleles

Additional factors that act on a single gene can alter the expected outcomes that Mendel’s basic principles of inheritance predict. This text explores how lethal alleles exemplify an exception to Mendelian inheritance.

Topics

  • 2:1 phenotypic ratio
  • 2:1 ratio
  • 3:1 phenotypic ratio
  • 3:1 ratio
  • agouti allele
  • agouti gene
  • agouti
  • complete dominance
  • Cuénot
  • dominance
  • dominant lethal allele
  • exception to Mendel
  • genotype
  • Gregor Mendel
  • inheritance
  • inviable
  • lethal allele
  • lethal yellow allele
  • lethality
  • Lucien Cuénot
  • Mendel
  • Mendelian trait
  • mouse coat color
  • phenotype
  • pleiotropic gene
  • pleiotropy
  • principles of inheritance
  • recessive lethal allele
  • simple trait
  • viable
  • yellow allele