Genetic Mutations POGIL Answer Key Latest Updated Rated A+

How many nucleotides are a part of a codon? 3 Does an mRNA sequence that codes for “stop” actually count as an amino acid? no What is the result of a substitution mutation? ONE codon changes which causes ONE amino acid to be different from the normal amino acid sequence What is an insertion mutation? An additional nucleotide is inserted in the normal sequence, which lengthens the sequence What is a deletion mutation? An existing nucleotide is removed in the normal sequence, which shortens the sequence Would all substitution mutations lead to a change in the amino acid sequence? No because if the last letter in a codon changed, the same amino acid is expressed than if the last nucleotide had not been changed. Would all insertion or deletion mutations lead to a change in the amino acid sequence? Yes because any new nucleotide that is inserted / deleted shifts the nucleotides, changing the letters of multiple codons.