Which of the following describes a frameshift mutation? * A) Substitution of one nucleotide for another.
B) Insertion or deletion of a group of nucleotides that is a multiple of three.
C) Insertion or deletion of a group of nucleotides that is not a multiple of three
D) insertion or deletion of nuleotides that results in a premature stop codon

What is the difference between bacterial infections and viral infections?

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.

18. which statement about cancer is true?