Could rna have been the original site of information storage in the primitive cell? a difficult problem with this possibility is that

Out of the following given choices;

a. RNA is not able to carry information.

b. RNA is more complex in structure than DNA.

c. RNA would get stuck on the inner surface of the nuclear membrane.

d. primitive cells would not let RNA molecules across their membranes.

e. no conditions exist that favor production of both the sugar and base parts of an RNA monomer

The answer is E. According to evolution, the best adaptable trait in an environment is highly preserved. The chemical properties of RNA make large RNA molecules inherently fragile, and they can easily be broken down into their constituent. Therefore it is unconvincing that was it was used to store critical genetic information.  

answer; /// i believe that the correct answer is (50%);

question: which statement best describes the different properties of metals?

answer: they are shiny and bend without breaking.

since metals have certain characteristics properties, they include the following: they are ductile, malleable, shiny, hard, lustrous, flexible and they are good conductor of heat and electricity. so therefore, metals are not dull and they are not non-flexible as listed. instead, they are shiny and flexible.

hope this , have a good day. c;