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
[spoiler]OA: D[/spoiler]
Is it neccessary for the underlined sentence to begin with Barbara McClintock
If we had a answer choice, will it be correct:
*a new class of mutant genes was discovered by Barbara McClintock, a discovery that led
though I could eliminate wrong answer choices for other reasons
A- which with out comma before
B- class... were (Sub-Verb disagreement), should be was
C- Looks like 2 seperate ideas .
Barbara McClintock discovered a new class of mutant genes
and Barbara McClintock led to greater understanding of cell differentiation
Also it refers to person here Barbara McClintock which is Incorrect
D- OK
E-Sentence fragment as no stand alone verb
if we remove modifier the sentence is like
Barbara McClintock leading 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
[spoiler]OA: D[/spoiler]
Is it neccessary for the underlined sentence to begin with Barbara McClintock
If we had a answer choice, will it be correct:
*a new class of mutant genes was discovered by Barbara McClintock, a discovery that led
though I could eliminate wrong answer choices for other reasons
A- which with out comma before
B- class... were (Sub-Verb disagreement), should be was
C- Looks like 2 seperate ideas .
Barbara McClintock discovered a new class of mutant genes
and Barbara McClintock led to greater understanding of cell differentiation
Also it refers to person here Barbara McClintock which is Incorrect
D- OK
E-Sentence fragment as no stand alone verb
if we remove modifier the sentence is like
Barbara McClintock leading to greater understanding of cell differentiation.
