Which of the following describes a frameshift mutation?Insertion or deletion of a group of three nucleotides within a reading frameInsertion or deletion of nucleotides that results in a premature stop codonInsertion or deletion of a group of three nucleotides outside a reading frameSubstitution of one nucleotide for another

The addition of a single nucleotide to the DNA sequence causes a frameshift mutation.Multiple ChoiceTrueFalse

Which type of mutation results when bases are added to a gene?A.MissenseB.FrameshiftC.SilentD.Nondisjunction

A mutation occurring when nucleotides are inserted in or deleted from a gene and the number inserted or deleted is not a multiple of three, resulting in the improper grouping of the subsequent nucleotides into codons.Group of answer choicesnonsense mutationmissense mutationframeshift mutationsilent mutationpoint mutationinsertiondeletionnucleotide substitutionNext

Of the following mutations, ____ is likely most deleterious, and ____ is likely least deleterious.   A table of the genetic code is shown below.  1. A change from TCA to TCG near the beginning of the open reading frame  2. A change from TAC to TAA near the beginning of the open reading frame  3. The insertion of an A near the end of the open reading frame  4. A change from TCT to CCT near the middle of the open reading frame

In a frameshift mutation, all of the amino acids before the shift are changed.Multiple ChoiceFalseTrue