GMAT Sentence Correction
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Source: GWD
Level: 4
While studying the genetic makeup of corn, a new class of mutant genes was discovered by Barbara McClintock, a discovery which led to greater understanding of cell differentiation.
- A a new class of mutant genes was discovered by Barbara McClintock, a discovery which led
- B a new class of mutant genes in corn were discovered by Barbara McClintock, leading
- C Barbara McClintock discovered a new class of mutant genes, and it led
- D Barbara McClintock discovered a new class of mutant genes, a discovery that led
- E Barbara McClintock, who discovered a new class of mutant genes, leading