Which of the Following Steps Has Not Yet Been Accomplished

question 13

Multiple Choice

Which of the following steps has not yet been accomplished by scientists studying the origin of life?

• A) synthesis of small RNA polymers by ribozymes
• B) formation of molecular aggregates with selectively permeable membranes
• C) formation of protocells that use DNA to direct the polymerization of amino acids
• D) abiotic synthesis of organic molecules

---

Definitions:

Copyleft

A licensing concept that allows for the free redistribution and modification of creative works, provided that all copied and modified versions are also free.

Digital Rights Management

Digital Rights Management (DRM) is a set of access control technologies aimed at protecting copyrights by restricting the use and distribution of digital content.

Sampling Rate

The number of samples per unit of time taken from a continuous signal to make a discrete or digital signal.

Trademark

A sign, term, or series of words officially recognized or developed through usage as a representation of a corporation or merchandise.