According to the RNA World hypothesis, which of these tasks was accomplished by early RNA, but is not generally accomplished by
the RNA of today's organisms? A. carrying genetic information
B. carrying information for making proteins
C. replicating, or making copies of itself
D. acting like a battery to store and release energy
Unlike in the past, the RNA of today does NOT carry genetic information.
Explanation:
The RNA world hypothesis stipulates that RNA used to store genetic information before the evolution of DNA. RNA, however, is very unstable and it is believed it is the reason for the evolution of DNA which is a more stable form of storing genetic information of cells.
The RNA world hypothesis is supported by the fact that RNA is multifaceted and can also catalyse reactions –like protein enzymes, makes up ribosomes, and can self replicate.
Organisms from all six kingdoms have DNA but some are not enclosed inside the nucleus but scattered in the cytoplasm.Only eukaryotes have nuclei where DNA strands are enclosed.
