The Second Most Abundant Element in the Solar System Is

question 23

Multiple Choice

The second most abundant element in the solar system is

• A) oxygen.
• B) hydrogen.
• C) silicon.
• D) helium.
• E) carbon.

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Definitions:

Amino Acid

Organic molecules that serve as the building blocks of proteins, containing both an amino group and a carboxyl group.

Coding Region

A portion of a gene's DNA or RNA that codes for protein.

AUG

The codon in messenger RNA that signals the start of translation and the amino acid methionine.

UAA

One of the three stop codons in the genetic code that signals the end of protein synthesis.