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Question

Difficulty: MediumColons, Semicolons, and Dashes

Based on the rules of Standard English conventions, which punctuation mark should be placed in the blank to grammatically connect the clauses?

Answer:In historical linguistics, the comparative method is used to reconstruct extinct protolanguages by comparing cognates from daughter languages 【;】 this systematic approach allows researchers to map out language families and trace human migration patterns across centuries.

Answer

A semicolon should be used to connect the two independent clauses.
A semicolon is the correct punctuation mark because it links two closely related independent clauses ('In historical linguistics, the comparative method is used to reconstruct extinct protolanguages by comparing cognates from daughter languages' and 'this systematic approach allows researchers to map out language families and trace human migration patterns across centuries') that are not joined by a coordinating conjunction.

Step-by-Step Solution

1
Analyze the clause before the blank.
The clause 'In historical linguistics, the comparative method is used to reconstruct extinct protolanguages by comparing cognates from daughter languages' contains a subject ('the comparative method') and a verb ('is used'), making it a grammatically independent clause.
To determine the correct punctuation, we must first establish the grammatical status of the text surrounding the blank.
2
Analyze the clause after the blank.
The clause 'this systematic approach allows researchers to map out language families and trace human migration patterns across centuries' also contains a subject ('this systematic approach') and a verb ('allows'), making it another independent clause.
Identifying the structure of the second clause tells us how it must relate to the first clause.
3
Determine the appropriate punctuation to join two independent clauses without a coordinating conjunction.
A semicolon (;) is the standard punctuation mark used to link two independent clauses that are not joined by a coordinating conjunction (such as 'and' or 'but').
Using a comma would result in a comma splice, while a colon is inappropriate because the second clause does not explain or list elements of the first.

Key Concept

Semicolons are used to link two independent clauses that are closely related in thought when no coordinating conjunction is present.
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Topics

Colons, Semicolons, and Dashes

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