1. Transcription occurs in the
a. Nucleus.
b. Ribosomes of the Rough Endoplasmic Reticulum.
c. Mitochondrion.
d. Cell membrane.
e. Smooth Endoplasmic Reticulum.

2. The monomers of DNA and RNA are
a. amino acids.
b. monosaccharides.
c. nucleotides.
d. fatty acids.
e. nucleic acids.

3. Which of the following statements regarding DNA isfalse?
a. DNA uses the nitrogenous base uracil.
b. DNA is a nucleic acid.
c. One DNA molecule can include four different nucleotides in itsstructure.
d. DNA uses the nitrogenous base thymine.
e. DNA molecules have a sugar-phosphate backbone.

4. Which of the following options best depicts the flow ofinformation when a gene directs the synthesis of a cellularcomponent (transcription and translation)?
a. DNA ? mRNA ? protein
b. mRNA ? DNA ? protein
c. protein ? mRNA ? DNA
d. mRNA ? protein ? DNA
e. DNA ? protein ? mRNA

5. Experiments have demonstrated that the “words” of the geneticcode (that are transcribed into codons) are
a. single nucleotides.
b. two-nucleotide sequences.
c. three-nucleotide sequences.
d. nucleotide sequences of various lengths.
e. enzymes.

6. Which of the following takes place duringtranslation?
a. translate info from mRNA to a protein.
b. translate info from DNA to mRNA.
c. translate info from DNA to tRNA.
d. translate info from proteins to enzymes.
e. DNA replication.