Biology: The Dynamics of Life, North Carolina Edition

Section 2: From DNA to Protein

From DNA to Protein

1
What is an intron?
A)a long, noncoding nucleotide sequence in genes
B)a codon
C)an amino acid
D)part of the translation process
2
AUG is __________, while UAA is __________.
A)a stop codon—a start codon
B)transfer RNA—messenger RNA
C)a start codon—a stop codon
D)a ribosome—a protein
3
Which of the following is one difference between RNA and DNA?
A)RNA and DNA are the same thing.
B)RNA contains uracil, while DNA contains thymine.
C)RNA's sugar is deoxyribose, while DNA's sugar is ribose.
D)RNA is double stranded, and DNA is single stranded.
4
The process where enzymes make an RNA copy of a portion of a DNA strand is called __________.
A)replication
B)helix creation
C)acid creation
D)transcription
5
Which nitrogenous base does uracil pair with in RNA?
A)adenine
B)thymine
C)cytosine
D)guanine
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