The DNA sequence below gives the first 12 base pairs of the trans...

Question

The DNA sequence below gives the first 12 base pairs of the transcribed region of a gene, and the template and nontemplate strands of DNA are identified. The transcription start is the thymine nucleotide at the end of the sequence given. Use the diagram to answer the list of questions. Make a copy of the diagram before you begin answering the questions, or have one group member diagram the answers for bacteria and another group member diagram the answers for eukaryotes.Nontemplate strand ___________TTGCTACGGTCA___________Template strand ___________AACGATGCCAGT___________Assuming the sequence shown is part of a bacterial gene, draw the approximate positions of the promoter sequence and the termination sequence.

Accepted Answer

Hey, everyone. Let's take a look at this question together in prokaryotes, transcription promoter sequences are DNA sequences that are located upstream of the gene and are responsible for initiating transcription. One such promoter sequence is the prib no box, which is located 10 base pairs upstream of the transcription start site and is critical for the recognition and binding of R N A polymerase, which of the following consensus sequences typically represents it is it answer choice A T A T A A T answer choice B A T att A answer choice C U T att A or answer choice D tt att A. Let's work this problem out together to try to figure out which of the following consensus sequences is the prim no box. So the prib no box, which we know the rib, no box is base hairs upstream. And so it is sometimes referred to as the element since it is 10 base pairs upstream from the transcription start site. And it also has a consensus sequence of P A P A A T which this consensus sequence is how you can identify prib no box, which is 10 base pairs upstream and also refer to as the 10 element. So looking at our answer choices, we can see that answer choice A T A T A A T is the same consensus sequence as the prib no box making answer choice. A, the correct answer. This answer choice BC and D are all incorrect consensus sequences and do not represent the prib no box, which is identified by that consensus sequence of T A T A A T which is answer choice. A, the correct answer. I hope you found this video to be helpful. Thank you and goodbye.

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