Asample (723 mg) of an oligomeric protein of mr 151,000 was treated with an excess of 1‑fluoro‑2,4‑dinitrobenzene (sanger's reagent) under slightly alkaline conditions until the chemical reaction was complete. the peptide bonds of the protein were then completely hydrolyzed by heating it with concentrated hcl. the hydrolysate was found to contain 2.71 mg of dnp‑val. 2,4‑dinitrophenyl derivatives of the α‑amino groups of other amino acids could not be found. calculate the number of polypeptide chains in this protein. give the answer as a whole number.

this is a good question! i'll do some research and come back when i have the answer!

i believe the answer would be b. hope it : )

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.