Consider the CT/CGRP example of alternative splicing shown in Figure 18.3. Which different types of alternative splicing patterns are represented?

Video transcript

Everyone. Let's take a look at this question together. Which of the following statements is true about alternative polly ventilation. So let's recall what we've learned about alternative polly and ventilation to figure out which of the following statements is true. So when we're talking about this alternative polly ventilation, we note that the poly A dental ation signal is the sequence that directs the conscription termination. And so looking at her answer choices. Let's try to figure out which of the following statements is true. Starting off with answer choice A. It says in this process the poly A tail is removed which we know is false because in this process the poly A tail is added and not removed so it is not answer choice A answer choice B says when the pollen ventilation signal is transcribed downstream Exxon's are included in the mature M. RNA. And we know that this answer is also incorrect because when the policy ventilation signal is skipped, that is when those downstream Exxon's are included in the mature M. R. N. A. So it is not answer choice B. An answer choice C. Is when polly ventilation is skipped during transcription, the downstream Exxon's are excluded. Which we know this is also incorrect because it is not when it is skipped. But when it is inscribed that the downstream Exxon's are excluded so does not answer choice C. Which means that answer choice D. None of the options is correct is the correct answer because answer choices A. B. And C. Are all false statements about alternative policy ventilation because the pa tail is added when the signal is skipped. That is when those downstream Exxon's are included and when the signal is transcribed, that is when those downstream Exxon's are excluded. So answer choice D. Is the correct answer. I hope you found this video to be helpful. Thank you and goodbye.