M. Klemke et al. (2001) discovered an interesting coding...

Question

M. Klemke et al. (2001) discovered an interesting coding phenomenon in which an exon within a neurologic hormone receptor gene in mammals appears to produce two different protein entities ( and ALEX). Following is the DNA sequence of the exon's end derived from a rat.

5'-gtcccaaccatgcccaccgatcttccgcctgcttctgaagATGCGGGCCCAG

The lowercase letters represent the initial coding portion for the protein, and the uppercase letters indicate the portion where the ALEX entity is initiated. (For simplicity, and to correspond with the RNA coding dictionary, it is customary to represent the coding (non-template) strand of the DNA segment.)

Locate the initiator codon within the XLαs segment.

Accepted Answer

Everyone. Let's take a look at this question together determine which of the following M RNA sequences codes for the given amino acid sequence. So here we have our sequence and we can see that we have four amino acids in that sequence. We have alan nine veiling, Janine and aspartame acid. And each of these amino acids have different M RNA sequences that code for them for alan I mean we have G c u g c c g c A N G c G prevailing, we have G u u G u c G u A N G U G for three. And then we have a C U A c C A C A and a C G. And lastly for a Spartak acid, we have G au N G A C. So looking at the following answer choices, let's see if they all code for the same amino acid sequence. Well, starting off with valentin, we C g c u G c U and G C a which we know you have G C U and G C A. So they all code for allen een prevailing, we C G u u G U C and G U a which we know G u u G u C and G U A. All code for veiling for three. And we see a C C A C C and a C A which we know that A C C and a C A all code 43 and 18. And lastly that hispanic acid we C G a U G A U N G A C which we know that both G A U and G a C code for hispanic acid. So that means answer choices A B and C. All code for the same amino acid sequence. So that means that answer choice D. All options are correct is the correct answer. Because when we take all of those answer choices and use those M RNA sequences, we can see that they all code for the same amino acid sequence given in the question. So answer choice D is the correct answer. I hope you found this video to be helpful. Thank you and goodbye.

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