Chapter 8- Gene expression

Question 1

frameshift mutation

Answer 1

addition or deletion of a number of base pairs other than three into the coding sequence

Question 2

nonsense mutation

Answer 2

mutational changes in which a codon for an amino acid is altered to a stop codon, resulting in the formation of a truncated protein

Question 3

missense mutation

Answer 3

changes in the nucleotide sequence of a gene that changes the identity of an amino acid in the polypeptide encoded by that gene

Question 4

Pleiotropy

Answer 4

when a single gene determines a number of distinct and seemingly unrelated characteristics

Question 5

penetrance

Answer 5

describes how many members of a population with a particular genotype show the expected phenotype