The fact that different organisms posessess the same introns bypervriable regions may be explained by: A) the fact that all DNA...

The fact that different organisms posessess the same introns bypervriable regions may be explained by: A) the fact that all DNA is based on the same triplet code. B) the fact that the genetic code is limited by the use of only 20 amino acids C) the fact that they descended from a common ancestor D) the fact that the introns and hypervariab;e regions code for common characteristics