Which of the following would be most likely to cause a mutation? A.
the addition of nucleotides to the 3’ end of the growing strand

B.
the insertion of a mismatched nucleotide into a DNA strand

C.
the unwinding of the DNA strand

D.
the synthesis of short stretches of DNA

B. the insertion of a mismatched nucleotide into a DNA strand

Explanation:

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.