Insertion and deletion mutations are said to cause shifts in the reading frame (the sets of three nucleotides) of the mRNA. Substitution mutations do not cause these so called frameshifts. Explain why insertions and deletion and deletions are called frameshift mutations, using the terms reading frame, codons, and amino acids in your answer

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.