Skag55 wrote:
About 70 percent of the tomatoes grown in the United States come from seeds that have been engineered in a laboratory, their DNA modified with genetic material not naturally found in tomato species.
(A) come from seeds that have been engineered in a laboratory, their DNA modified with genetic material not naturally found in tomato species
-percent of tomatoes ... come = correct.
For SANAM (some, any, most, all, none) pronouns, majority, minority and percent the verb follows the noun in the "of noun" phrase
- their DNA - here their can refer to tomatoes / seeds.
Analyze the meaning - the initial part of the sentence says that "seeds have been engineered in a lab". Thus if seeds are engineered the naturally the DNA should refer to seeds and not tomatoes.
- Seems to be correct option
(B) come from seeds that have been engineered in a laboratory, and also having their DNA modified with genetic material not naturally found in tomato species
- Come = correct
- "and also having" - "and also" = redundant
-"also having" - is not parallel to "come from seeds / grown" - parallelism error
- Wrong
(C) come from seeds engineered in a laboratory and that have had their DNA modified with genetic material not naturally found in tomato species
-"come" = correct
- "and that" there is no structure that can be parallel to "and that" in the previous part of the sentence
- Wrong
(D) comes from seeds that have been engineered in a laboratory and with their DNA modified with genetic material not naturally found in tomato species
- "Comes" - wrong
-"and with" - wrong
- Wrong
(E) comes from seeds that have been engineered in a laboratory, and their DNA modified with genetic material not naturally found in tomato species
- "Comes" - wrong
-"and their" - lacks a verb
-Wrong
Answer: A