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4 Cards in this Set

  • Front
  • Back
Some organisms have additional DNA without added complexity, what is this due to?
interrupted genes
repeated genes
gene families
pseudogenes
what are interrupted genes?
most genes in higher eukaryotes are interrupted by introns- non coding sequr=ences of DNA removed from the mRNA copy during splicing
what are the exceptions to having interrupted genes?
histones
some interferons
some adenovirus
herpes virus genes
what is the evidence for the presence of introns?
cDNA synthesis from mRNA, restriction digests different when compared to the gene
R-loop formation when cDNA is hybridised to gene
S1 nuclease mapping experiments