gwd-8-30

GWD-8-Q30:

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.

1. a new class of mutant genes was discovered by Barbara McClintock, a discovery which led

2. a new class of mutant genes in corn were discovered by Barbara McClintock, leading

3. Barbara McClintock discovered a new class of mutant genes, and it led

4. Barbara McClintock discovered a new class of mutant genes, a discovery that led

5. Barbara McClintock, who discovered a new class of mutant genes, leading

Answer;D

E 紅色部分當作加入語修飾不行嗎?

請問c錯什麼?

请问B选项错在？