The study of e. coli led scientists to new experimental designs for studying operons. how did scientists begin studying operons? they began to study cell division of cells under a microscope to determine how operons worked. they began testing different chemicals on e. coli to determine the number of operons present. they began reading the genome sequence of organisms to determine the number and organization of operons.

image result for describe the various types of gene mutationsghr.nlm.nih.gov

the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.

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you should wear a lead protective shield when having teeth x-rays

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-lavira : )