21) D

Look at graph 1 and look for the ‘OVERALL AVERAGE’ bar.

Journals with errors more than average:

  1. BMC Genomics
  2. Nucleic acid Res
  3. Nature Genet
  4. Genome Biol
  5. Genome Res
  6. Genes Dev
  7. Nature

Number of Papers affected in each of the above journals

  • Number of papers affected in BMC Genomics = 158
  • Number of papers affected in Nucleic acid Res = 67
  • Number of papers affected in Nature Genet = 9
  • Number of papers affected in Genome Biol = 63
  • Number of papers affected in Genome Res = 68
  • Number of papers affected in Genes Dev = 55
  • Number of papers affected in Nature = 23

Sum of number of papers affected by these journals:

158 + 67 + 9 + 63 + 68 + 55 + 23 = 443

Total number of papers affected = 704

Percentage = (443 ÷ 704) x 100 = 62.9261 ≈ 63%

So D is the answer.