Mutations and Protein Synthesis

Which mutation occurs when two bases are added to a DNA strand?

• insertion

• point mutation

• deletion

Which mutation causes only one base to change in a DNA strand?

• insertion

• point mutation

• deletion

Which type of mutation causes bases to be removed from a DNA strand?

• insertion

• point mutation

• deletion

A geneticist found that a specific mutation had no effect on the protein coded for by

a gene. What is the most likely type of mutation that occurred?

• insertion

• point mutation

• deletion

A gene on DNA was found to be missing several nucleotides. What type of mutation

occurred?

• insertion

• point mutation

• deletion

Which nucleic acid is used to find amino acids on the codon chart?

• DNA

• tRNA

• rRNA

• mRNA

True or False? Mutations are always harmful.

• True

• False

True or False? Frameshift mutations are considered more harmful than point mutations.

• True

• False

True or False? Point mutations are considered more harmful than Frameshift mutations.

• True

• False

True or False? Mutations can be harmful, helpful or have no effect on an organism.

• True

• False