Biology 104: Exam 1 Practice Test Questions
With Complete Solutions 100% Correct
1. In a water molecule (H2O), the oxygen atom: B) carries a partial negative charge
2. Which domains of life include prokaryotic cells? B) Bacteria and Archaea
4. What is a hydrogen bond? B) An attraction between partial positive and negative
charges
5. Thepromoterofagenedetermines: B) where transcription will begin
7. Of the structures listed below, what is the smallest structure that has all the properties of life?
C) Cell
9. The overall three-dimensional shape of a single polypeptide chain is called its: D)
tertiary structure
10. What parts of a nucleotide can form a phosphodiester bond with one another? C) The
5' phosphate group and the 3' hydroxyl group
, Biology 104: Exam 1 Practice Test Questions
With Complete Solutions 100% Correct
11. When a pre-mRNA molecule is spliced to produce a mature mRNA molecule, the sequences
that are spliced together and retained in the mature mRNA are called: D) exons
12.An atom is most stable (and least chemically reactive) when: D) its valence shell is full
13. The coding (nontemplate) strand of a portion of a gene has the sequence 5'-
AAGCGTGTTGC-3'. What is the sequence of the mRNA molecule that will be produced based
on the information in this DNA molecule? C) 5'-AAGCGUGUUGC-3'
14. Which of the following statements about the phospholipid bilayer is INCORRECT?
D) The addition of saturated fatty acids to a phospholipid bilayer will increase its fluidity.
15. When a gene sequence from a bacterial cell is placed into a eukaryotic cell, the eukaryotic
cell can synthesize the correct protein encoded by gene. However, if a eukaryotic gene is placed
into a bacterial cell, the bacterial cell cannot use the information to synthesize the correct protein.
Why is a bacterial cell unable to synthesize a protein correctly from a eukaryotic gene? C)
Bacterial cells cannot splice mRNA molecules.
With Complete Solutions 100% Correct
1. In a water molecule (H2O), the oxygen atom: B) carries a partial negative charge
2. Which domains of life include prokaryotic cells? B) Bacteria and Archaea
4. What is a hydrogen bond? B) An attraction between partial positive and negative
charges
5. Thepromoterofagenedetermines: B) where transcription will begin
7. Of the structures listed below, what is the smallest structure that has all the properties of life?
C) Cell
9. The overall three-dimensional shape of a single polypeptide chain is called its: D)
tertiary structure
10. What parts of a nucleotide can form a phosphodiester bond with one another? C) The
5' phosphate group and the 3' hydroxyl group
, Biology 104: Exam 1 Practice Test Questions
With Complete Solutions 100% Correct
11. When a pre-mRNA molecule is spliced to produce a mature mRNA molecule, the sequences
that are spliced together and retained in the mature mRNA are called: D) exons
12.An atom is most stable (and least chemically reactive) when: D) its valence shell is full
13. The coding (nontemplate) strand of a portion of a gene has the sequence 5'-
AAGCGTGTTGC-3'. What is the sequence of the mRNA molecule that will be produced based
on the information in this DNA molecule? C) 5'-AAGCGUGUUGC-3'
14. Which of the following statements about the phospholipid bilayer is INCORRECT?
D) The addition of saturated fatty acids to a phospholipid bilayer will increase its fluidity.
15. When a gene sequence from a bacterial cell is placed into a eukaryotic cell, the eukaryotic
cell can synthesize the correct protein encoded by gene. However, if a eukaryotic gene is placed
into a bacterial cell, the bacterial cell cannot use the information to synthesize the correct protein.
Why is a bacterial cell unable to synthesize a protein correctly from a eukaryotic gene? C)
Bacterial cells cannot splice mRNA molecules.
