Three genes identified in the diagram as A, B, and C are...

Question

Three genes identified in the diagram as A, B, and C are transcribed from a region of DNA. The 5'-to-3' transcription of genes A and C elongates mRNA in the right-to-left direction, and transcription of gene B elongates mRNA in the left-to-right direction. For each gene, identify the coding strand by designating it as an 'upper strand' or 'lower strand' in the diagram. <>

Accepted Answer

Hello everyone and welcome to today's video during transcription, only one of the two DNA strands. It's in parenthesis. The template strand is used as a template for R N A synthesis. While the other strand between parentheses, the non template strand or coding strand is not transcribed, which of the following strands is more conserved between species we have as answer choice A the template strand we have as answer choice B the coding strand, then we have as answer choice C the lacking strand and as answer choice D the leading strand. Well, remember from previous videos that DNA is going to have these two strands that are going to participate in transcription. One of them is going to be the coding strand and the other one is going to be the template trend. Now the coding strand is going to be exactly the same as the M R N A product just replacing the use for the. Well, the template strand is going to be different. It's going to be complementary to it now because this coin strand is exactly the same as the M R N A product. We say that it is conserved because it's not changing. If we want this protein product to be created, we need to have this coding strand equal among different species. While the template strand can be different as long as we're gaining the same protein product. Therefore, answer choice B the coding strand is going to be the correct answer for this question. I really hope this video helped you and I hope to see you on the next one.

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