Since Watson and Crick described DNA in 1953, which of the following might best explain why the function of small RNAs (miRNAs) is still not well understood?
A) As RNAs have evolved since that time, they have taken on new functions.
B) Watson and Crick described DNA but did not predict any function for RNA.
C) The functions of small RNAs could not be approached until the entire human genome was sequenced.
D) Ethical considerations prevented scientists from exploring this material until recently.
E) Recent advances in technology and our understanding of how DNA is expressed have made this possible.

Question

Quizplus · Accepted Answer

Recent advances in technology and our understanding of how DNA is expressed have made it possible to study the functions of small RNAs (miRNAs). While Watson and Crick described DNA in 1953, our understanding of gene expression and genetic regulation has grown substantially since then, allowing for the discovery and study of previously unknown RNA molecules such as miRNAs.

Since Watson and Crick Described DNA in 1953, Which of the Following