SC's Question number - 911 , 912

911). Using the techniques employed by genetic engineering, a new species of microorganism has been developed by laboratory scientists to aid in cleaning up oil spills by digesting the oil.

(A) Using the techniques employed by genetic engineering, a new species of microorganism has been developed by laboratory scientists to

(B) Using the techniques employed by genetic engineering, a new species of microorganism that was developed by laboratory scientists will

(C) Using the techniques of genetic engineering, laboratory scientists have developed a new species of microorganism to

(D) Employing the techniques of genetic engineering there has been a development by laboratory scientists of a new species of microorganism that will

(E) Employing the techniques of genetic engineering, a new species of microorganism that was developed by laboratory scientists will

912). Very popular from 1900 until the 1920's, the renewed interest in ceiling fans began when the energy crisis in 1974 forced homeowners to look for alternative methods of heating and cooling.

(A) Very popular from 1900 until the 1920's, the renewed interest in ceiling fans began

(B) The renewed interest in ceiling fans, which were very popular from 1900 until the 1920's, began

(C) After they were very popular from 1900 until the 1920's, the renewed interest in ceiling fans was beginning

(D) Ceiling fans were very popular from 1900 until the 1920's, with renewed interest beginning in them

(E) From 1900 until the 1920's ceiling fans were very popular, and now the renewed interest in them has begun

Answers:

911). OA - C

A, B, E - incorrect - misplaced modifier - Using the techniques of genetic engineering should modify laboratory scientists.

D - incorrect - wordy - there has...

912). OA - B - which correctly refers to ceiling fans

A,C,D,E - incorrect - modifier error - Very popular from 1900 until the 1920’s should modify the ceiling fans and not the renewed interest.