Q2

[jiangmanshu]

For this question, I was confused by B. When I did the review, I still hoped to ask whether the error of B could be ONE WORD WRONG--"initiated". The passage did not express the idea

Also, I still have a problem with A, how do we express "led to"?

[ohthatpatrick]

You're correct that (B) is wrong because we can't support the word "initiated".

This answer seems to have things backwards ... research into the genetic code of cells came first, rDNA technology came after.

We justify "led to the development" in (A) by looking at lines 3-7, which say that research into cell genetics culminated "in the development of processes ... for the active manipulation of a cell's genetic code".

Hope this helps.

[jiangmanshu]

You're correct that (B) is wrong because we can't support the word "initiated".

This answer seems to have things backwards ... research into the genetic code of cells came first, rDNA technology came after.

We justify "led to the development" in (A) by looking at lines 3-7, which say that research into cell genetics culminated "in the development of processes ... for the active manipulation of a cell's genetic code".

Hope this helps.

Thanks a lot~
This is really helpful