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Question

Difficulty: EasySubject-Modifier Agreement

Complete the sentence by filling in the blank with the name of the scientist described by the introductory modifier.

Answer:Having studied the genetic inheritance of maize for decades, 【Barbara McClintock】 discovered transposable elements in 1948.

Answer

Barbara McClintock
The introductory modifier 'Having studied the genetic inheritance of maize for decades' describes an action performed by a person. Therefore, the subject immediately following the comma must be the person who did the studying, which is Barbara McClintock. Placing her name in the blank ensures proper subject-modifier agreement.

Step-by-Step Solution

1
Identify the introductory modifying phrase at the beginning of the sentence.
The phrase is 'Having studied the genetic inheritance of maize for decades.'
This modifier describes an action performed by a logical subject.
2
Determine who logically performed the action of studying maize.
The scientist Barbara McClintock is the logical subject who performed this study.
To avoid a dangling modifier, the subject immediately following the comma must be the person who performed the action.

Key Concept

Subject-Modifier Agreement
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Topics

Subject-Modifier Agreement

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