What Component of Amino Acid Structure Varies Among Different Amino

question 52

Multiple Choice

What component of amino acid structure varies among different amino acids?

• A) the long carbon-hydrogen tails of the molecule
• B) the presence of a central C atom
• C) the components of the R group
• D) the glycerol molecule that forms the backbone of the amino acid

---

Definitions:

Extinction

Refers to the permanent loss of a species. It is marked by the death or failure to breed of the last individual.

Stromatolites

Layered structures formed by the mineralization of bacteria.

Zircons

Minerals that are widely used in dating geological structures due to their ability to encapsulate and preserve uranium-lead isotopes over immense periods.

Fossilized

The process by which organic material is converted into a fossil, preserving the remains of organisms that lived in the past.