If You Want to Identify Protein-Coding Sequences, Why Is It

question 170

Multiple Choice

If you want to identify protein-coding sequences, why is it more efficient to study messenger RNAs than DNA?

• A)Because mRNAs have poly-A tails
• B)Because mRNAs do not contain the promoter sequence
• C)Because triplets of nucleotides in DNA do not indicate what amino acids will be present in a protein.
• D)Because processed mRNA does not contain introns.

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Definitions:

Ketone Group

A functional group in organic chemistry characterized by a carbon atom double-bonded to an oxygen atom, with two other carbon atoms attached.

Ethylethanoate

Also known as ethyl acetate, an organic compound used as a solvent in many applications due to its pleasant smell and quick evaporation.

Methylethanoate

An ester formed from methanol and acetic acid, known for its fruity smell and used in the manufacture of flavors and fragrances.

Ethylmethanoate

A chemical compound more commonly known as ethyl formate, an ester formed from ethanol and formic acid with the formula C3H6O2.