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While studying the genetic makeup of corn, a new class

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Joined: 28 May 2005
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While studying the genetic makeup of corn, a new class  [#permalink]

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14 Oct 2005, 12:30
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Difficulty:

5% (low)

Question Stats:

88% (00:44) correct 12% (01:04) wrong based on 763 sessions

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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.
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
VP
Joined: 24 Sep 2005
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Re: SC # Barbara McClintock  [#permalink]

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14 Oct 2005, 20:27
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nakib77 wrote:
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.
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

who "studying" here is Barbara, not the " new class of mutant" . Thus, eliminate A and B.
What " leading" here is the discovery , not Barbara. Eliminate E.
"it" in C has no ante-decent, thus C is out.
I'm left with D.
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14 Oct 2005, 17:20
1
A. misplaced modifier
B. misplaced modifier
C. 'it' doesn't have a clear noun that it can refer to.
D. Best choice. Clear and concise.
E. awkward
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Re: While studying the genetic makeup of corn, a new class  [#permalink]

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01 Nov 2014, 09:23
1
1
This is a simple question and you can answer it correctly by just figuring out the correct structure you can get among the answer choices.
First, analyze its building blocks in clauses and then know what each element is.

Correct answer choice D looks like this:

Subordinate Clause + Main Clause + Subordinate Clause

Opening Modifier + Subject, Verb, Object + Noun+Noun Modifier (modifying preceding clause)

Hope it helps
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Re: While studying the genetic makeup of corn, a new class  [#permalink]

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24 Nov 2017, 02:06
1
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 - modifier issue
B. a new class of mutant genes in corn were discovered by Barbara McClintock, leading - modifier issue
C. Barbara McClintock discovered a new class of mutant genes, and it led - pronoun it antecedent issue
D. Barbara McClintock discovered a new class of mutant genes, a discovery that led - Correct
E. Barbara McClintock, who discovered a new class of mutant genes, leading - no main verb

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Re: SC # Barbara McClintock  [#permalink]

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14 Oct 2005, 18:14
D is best. needs noun to modify the phrase "While studying the genetic makeup of corn".

nakib77 wrote:
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.
D. Barbara McClintock discovered a new class of mutant genes, a discovery that led
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Re: SC # Barbara McClintock  [#permalink]

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14 Oct 2005, 19:06
Clear D

A and B use wrong ref.
C has tense error "led"
E wrong construction.

nakib77 wrote:
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.
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
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15 Oct 2005, 06:47
Same analysis an laxieqv.

D is definately the OA.
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Re: Q30: While studying the genetic makeup of corn, a new class  [#permalink]

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11 Aug 2013, 11:25
nakib77 wrote:
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.
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

I have a small doubt in D . Is the sentence D correct at all . verbs discovered and led , both in the same tense . This sounds awkard to me . I guess it should be had discovered and led to emphasize that discovery happened first . Is my logic correct ??
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While studying the genetic makeup of corn, a new class  [#permalink]

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09 Mar 2020, 09:14
in the option d, i believe that there is run on error as two sentences " mutant genes, discovery that led " are two complete clauses which are connected with comma, expert advice if any
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Re: While studying the genetic makeup of corn, a new class  [#permalink]

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09 Mar 2020, 20:04
mohitmonika123 wrote:
in the option d, i believe that there is run on error as two sentences " mutant genes, discovery that led " are two complete clauses which are connected with comma, expert advice if any
Hi mohitmonika123,

"A discovery that led to greater understanding of cell differentiation" is not a clause. It is a noun phrase.

a discovery that led to greater understanding of cell differentiation

The that led... bit is a clause, but it is just a modifier for the noun discovery.
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Re: While studying the genetic makeup of corn, a new class  [#permalink]

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12 Mar 2020, 01:29
Explanation:

A. Eliminate.
The modifier 'While studying the …’ incorrectly modifies 'a new class of genes'. It should rather modify Barbara M. "which" must be separated by commas.

B. Eliminate.
The modifier 'While studying the …’ incorrectly modifies a new class of genes'. Same as Option A. Singular 'class of genes' needs singular 'was', not plural 'were'.

C. Eliminate.
The antecedent of 'it' is not very clear.

The absolute modifier is correctly used. Modifiers are correctly placed and structured.

E. Eliminate.
If the modifiers are removed the sentence reduces to 'While studying the genetic makeup of corn, Barbara M, leading to ...'. This is a sentence fragment as there is no active verb.

Hope this helps!
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Re: While studying the genetic makeup of corn, a new class  [#permalink]

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12 Mar 2020, 02:59
nakib77 wrote:
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.
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

This is a classic case of misplaced modifier. the studying is being done by Barbara McClintock and not new class of mutant genes. Further "a discovery" should modify "a new class of genes".
A. Incorrect- As explained above
B. Same misplaced modifier as in A, Subject verb agreement error, Verb-ing modifier is not conveying the proper meaning here, it is best to use a noun+ noun modifier.
C. Pronoun error
D. Correct
E. Run-on sentence. Verb missing.
Re: While studying the genetic makeup of corn, a new class   [#permalink] 12 Mar 2020, 02:59
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