Final answer:
The loss of 5' → 3' polymerase activity in DNA polymerase I would prevent the synthesis of new DNA strands and inhibit the removal of RNA primers.
Step-by-step explanation:
If the 5' → 3' polymerase activity of DNA polymerase I were destroyed, it would have a significant impact on the synthesis of new DNA strands. The 5' → 3' polymerase activity is responsible for adding new nucleotides to the growing DNA strand. Without this activity, DNA synthesis would not be possible, and the cell would not be able to replicate its DNA.
The removal of RNA primers by DNA polymerase I would also be affected. DNA polymerase I has exonuclease activity, which allows it to remove RNA primers from the DNA. Without this activity, the RNA primers would not be removed, and the DNA would not be properly synthesized.