Question 42

[rocketbooster]

Anyways, for this question, the reason for picking D over C is stupid. "The question uses the word "initial." One of the initial steps in protein synthesis is the transcription of a gene to produce mRNA which is then translated within a ribosome to produce a protein (BIO 3.0)."

The sole reason D is better than C is because of the word "initial" in the question stem. Are you kidding me?

[jellywing_2058]

This question is about picking the BEST answer; which one happens first?
Answer choice C occurs after D, because option C talks about ribosomal activity which is, as you know, translation.

On the other hand, answer choice D talks about transcription levels.
This should be obvious to you that transcription occurs before translation, making and answer choice D better than C.

[dcherian8173]

The word "initial" in the question stem doesn't make much difference between choice C and D, in my opinion.

The passage states that "Ibogaine affects the cell at the level of protein synthesis"-- which would be translation. Based on this, I selected choice C, since it refers to translation.

However, the reason I think D is a better answer than C is because D refers specifically to the dopamine transporter gene, whereas C is referring rather generally to increasing ribosomal activity. If ribosomal activity is increased, this won't necessarily increase the number of dopamine transporters, since you also need a corresponding increase in the mRNA which codes for the transporter. Choice D increases the amount of mRNA that codes for the transporter, and thus will increase the number of dopamine transporters that will ultimately be transcribed.

[admin]

Please look at the Explanation in the Exam, to understand why choice D is a better choice than choice C.