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

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___________

Write the anticipated eukaryotic consensus sequence(s) in the approximate position(s) on the diagram.

Accepted Answer

Hi, everyone. Welcome back. Here's the next problem. The promoter region is a portion of DNA sequence where gene transcription is initiated, the DNA sequence found in the core promoter region that contains a consensus sequence of repeating thymine and Adine bases is called choice. A cat box CAA T box, choice B tata box, which is T A T A box, choice C G C box or choice D mini satellite. Well, this one kind of is pretty easy for us. Even if you don't remember off the top of your head, we're looking for a consensus sequence with repeating T and A bases. So that would lead you pretty easily to choice B the tata box T A T A box. And that is our correct answer to be thorough. Let's just look at the other answer. Choices. Choice A, the cat box is a consensus sequence that often occurs in promoters, but its sequence is G G C CAA T C T. So not the repeating thymine and admin basis. That's why that's not our answer. Choices. Choice C the G C box as its name indicates is a consensus sequence, consensus sequence that involves G N C base and its consensus consensus sequence is G G G C G G G. So not our answer choice there. And then finally, mini satellite is a short repeated DNA sequence. So it forms a region of repetitive DNA with the sequence repeated 5 to 50 times. And it is involved in gene regulation. But it's not that T A T A repetition that we're looking for. So that's why choice D is not our answer. So again, the core promoter region consensus sequence with repeating timing and editing base is called choice B. The tata box. See you in the next video.

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