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Zorluk: OrtaRun-on Sentences and Comma Splices

Biophysicists investigating avian navigation have identified cryptochrome proteins in the retinas of migratory songbirds. These specialized light-sensitive molecules undergo quantum entanglement when activated by blue <u style="text-decoration: underline;">light, consequently, the birds</u> can perceive subtle inclinations in Earth's magnetic field. This quantum compass allows night-migrating species to navigate accurately across thousands of miles.

Which of the following choices best corrects the underlined portion of the sentence?

  1. A
    NO CHANGE
  2. light; consequently, the birdsCevap
  3. C
    light; consequently, since the birds
  4. D
    light, which consequently, the birds

Cevap

The underline should be replaced with a semicolon followed by the conjunctive adverb 'consequently' and a comma: 'light; consequently, the birds'.
The correct response replaces the comma splice with a semicolon before the conjunctive adverb 'consequently' and a comma after it. Because both 'These specialized light-sensitive molecules undergo quantum entanglement when activated by blue light' and 'the birds can perceive subtle inclinations in Earth's magnetic field' are complete independent clauses, a semicolon is required to separate them when using a conjunctive adverb.

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1
Identify the clause structure on both sides of the underlined transition.
The first clause ('These specialized light-sensitive molecules undergo quantum entanglement when activated by blue light') and the second clause ('the birds can perceive subtle inclinations in Earth's magnetic field') are both complete independent clauses capable of standing alone as full sentences.
Determining whether clauses are independent or dependent dictates the required punctuation.
2
Evaluate the punctuation needed for joining two independent clauses with a conjunctive adverb.
A conjunctive adverb such as 'consequently' cannot link two independent clauses with just commas; doing so forms a comma splice. The preceding punctuation must be a semicolon (or period), followed by a comma after the adverb.
A semicolon is mandatory between two independent clauses when joined by a transitional adverb.
3
Select the option that applies the correct punctuation without introducing fragment errors or awkward phrasing.
The option providing a semicolon before 'consequently' and a comma after it perfectly resolves the comma splice while maintaining two complete, grammatically sound independent clauses.
This fix ensures proper sentence boundary conventions required by standard English punctuation rules.

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Run-on Sentences and Comma Splices with Conjunctive Adverbs
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Run-on Sentences and Comma Splices

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