Which of the Following Is True of Dominant Loss-Of-Function Mutations

question 24

Multiple Choice

Which of the following is true of dominant loss-of-function mutations?

• A) The mutant phenotype is seen even if an additional functional copy of a gene is present
• B) The mutation is present in trans but not in cis
• C) The mutant phenotype is seen only in haploids
• D) The mutant phenotype is seen only when two defective copies of a gene are present