Identify the kind of dependent clause in each sentence. Note that some sentences do not have a dependent clause while others have reduced dependent clauses. Some sentences have more than one dependent clause of the same type. It would be useful to review the basics of independent and dependent clauses (adjective clauses, adverb clauses, and noun clauses) before answering the questions in this exercise. The sentences are from an adapted version of the article "Genetically Modified People" which was published in The Economist (March 15, 2015.)
It has been known for a while that some genes move from one species to another given the chance, in a process called horizontal gene transfer.
Adjective Clause
Adverb Clause
Noun Clause
No Dependent Clauses
Only recently has it become clear just how widespread such natural transgenics is.
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Noun Clause
No Dependent Clauses
What was once regarded as a peculiarity of lesser organisms has now been found to be true in human beings, too.
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No Dependent Clauses
Alastair Crisp and Chiara Boschetti of Cambridge University, and their colleagues, have been investigating the matter.
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No Dependent Clauses
Their results, published in Genome Biology, suggest human beings have at least 145 genes picked up from other species by their forebears.
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Noun Clause
No Dependent Clauses
Hyaluronic acid is a chemical that is an important part of the glue which holds cells together.
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Noun Clause
No Dependent Clauses
They also identified five immigrants that generate antioxidants and seven that are part of the immune system.
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No Dependent Clauses
If plant or animal breeders insert genes from other organisms into crop plants or cattle, there would no doubt be an outcry.
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No Dependent Clauses
In humans, however, foreign genes are doing a good job.