In a bacterial operon:a) all of the operon genes are transcribed into a single RNA molecule b) the inducer must be a sugar c) the inducer must be a protein d) regulation occurs at the level of translation e) all of the genes are constitutive genes.

Option- A

when it's short and dry.

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.

explanation: