The Green Revolution provided B. An increase in the yield of crops forless-developed countries.
I hope this help but the metalloids is gruop five if that what your asking if not i will answer the other question for you
Answer:
during DNA replication
Explanation:
During DNA synthesis, when an incorrect nucleotide gets inserted in daughter strand of DNA, DNA polymerase goes back by one nucleotide pair, excises the mismatched nucleotide and repairs error. Thus, the DNA polymerase checks for mutations at the time of DNA replication
