Use this information to match the list of probes to the 3 samples below:You have isolated several DNA sequences from a variety of mouse tissues. You have labeled each one of them with a radioisotope and will use them as probes on blots of several DNA and RNA samples. Below are a list of all the probes you generated (probes A through E) and a list of all the DNA and RNA samples that you will analyze (Samples 1 through 3)Beside each sample, write the letters corresponding to all the probes that will bind to a complementary sequence in that sample. These responses are graded all or nothing!List of probesProbe A: promoter sequence of a gene that is only expressed in the nervous systemProbe B: promoter sequence of one of the genes encoding a ubiquitously expressed histone proteinProbe C: coding sequence of a gene that is only expressed in the nervous systemProbe D: coding sequence of one of the genes encoding a ubiquitously expressed histone proteinProbe E: intron of a gene that is only expressed in the nervous systemList of samplesSample 1: Southern blot of genomic DNA extracted from adult mouse cardiac muscle system cellsSample 2: Northern blot of mRNA extracted from adult mouse nervous system cellsSample 3: Northern blot of mRNA extracted from adult mouse cardiac muscle cells

1- The significant observation that is made in the experiment is the time for the orange-brown color to ______disappear or appear________ because ______bromine or aren hydrocarbon______ is the limiting reagent.2-The arene compound that reacted the slowest with bromine was _____toluene or t-butylbenzene________ because the hydrogen abstracted is _____primary or benzylic____. 3-How many possible monochlorination products of 2-methylbutane are there? Include minor product(s) not just the major product(s). If a product exists as a pair of enantiomers be sure to count both enantiomers as a distinct product.4-How many possible monochlorination products of t-butylbenzene are there? Include minor product(s) not just the major product(s). If a product exists as a pair of enantiomers be sure to count both enantiomers as a distinct product. Do not count any possible substitution products on the six carbons of the aromatic ring.