BIOC 384: FINAL EXAM.2025|100%
CORRECTQUESTIONS&ANSWERS
The study of biochemistry attempts to explain
- Chemistry processes at the atomic level
- Biological processes at the molecular and cellular level
- The nature of life
- Physical processes at the macromolecular level –
Answer ☑️Biological processes at the molecular and
cellular level
The ________ differentiates amino acids from one another
- Number of silane groups
- Number of phosphoryl groups
- Side chains attached to the central carbon
,- Number of hydroxyl groups – Answer ☑️Side chains
attached to the central carbon
If the concentration os aspartate in the cell decreased, what
would be the predicted outcome?
- Increased concentration of argininosuccinate
- Decreased concentration of citrulline
- Decreased concentration of fumarate
- Increased concentration of arginine –
Answer ☑️Decreased concentration of fumarate
Plasmids are small, circular DNA molecules that are used in
which of the following?
- Gene cloning
- Production of chromatin
- Cell movement
- Replication of nucleus – Answer ☑️Gene cloning
,A hydrogen bond can best be described as
- Strong covalent interaction
- Strong ionic interaction
- Weak noncovalent interaction
- Weak covalent interaction – Answer ☑️Weak noncovalent
interaction
Given a DNA sequence of 3’-CAT-5’, what is the
complementary sequence in mRNA?
- 5’-GUA-3’
- 5’-AUG-3’
- 3’-GUA-5’
- 5’-GTA-3’ – Answer ☑️5’-GUA-3’
Bioinformatics shows that 98% of human DNA is identical to
that of chimpanzees. If human DNA contains 3.2 billion
nucleotides, how many nucleotides are different between
the two species?
, - 3.1 billion
- 64 million
- 3.1 million
- 640 million – Answer ☑️64 million
Highly conserved gene sequences that encode proteins with
the same function in different organisms are called
__________ genes
- Orthologous
- Conserved
- Parallel
- Antiparallel – Answer ☑️Orthologous
In DNA the phosphate groups are on the outside of the helix.
Why does this stabilize the structure?
- Ionic interactions with the solvent
- Hydrogen bonding with itself
CORRECTQUESTIONS&ANSWERS
The study of biochemistry attempts to explain
- Chemistry processes at the atomic level
- Biological processes at the molecular and cellular level
- The nature of life
- Physical processes at the macromolecular level –
Answer ☑️Biological processes at the molecular and
cellular level
The ________ differentiates amino acids from one another
- Number of silane groups
- Number of phosphoryl groups
- Side chains attached to the central carbon
,- Number of hydroxyl groups – Answer ☑️Side chains
attached to the central carbon
If the concentration os aspartate in the cell decreased, what
would be the predicted outcome?
- Increased concentration of argininosuccinate
- Decreased concentration of citrulline
- Decreased concentration of fumarate
- Increased concentration of arginine –
Answer ☑️Decreased concentration of fumarate
Plasmids are small, circular DNA molecules that are used in
which of the following?
- Gene cloning
- Production of chromatin
- Cell movement
- Replication of nucleus – Answer ☑️Gene cloning
,A hydrogen bond can best be described as
- Strong covalent interaction
- Strong ionic interaction
- Weak noncovalent interaction
- Weak covalent interaction – Answer ☑️Weak noncovalent
interaction
Given a DNA sequence of 3’-CAT-5’, what is the
complementary sequence in mRNA?
- 5’-GUA-3’
- 5’-AUG-3’
- 3’-GUA-5’
- 5’-GTA-3’ – Answer ☑️5’-GUA-3’
Bioinformatics shows that 98% of human DNA is identical to
that of chimpanzees. If human DNA contains 3.2 billion
nucleotides, how many nucleotides are different between
the two species?
, - 3.1 billion
- 64 million
- 3.1 million
- 640 million – Answer ☑️64 million
Highly conserved gene sequences that encode proteins with
the same function in different organisms are called
__________ genes
- Orthologous
- Conserved
- Parallel
- Antiparallel – Answer ☑️Orthologous
In DNA the phosphate groups are on the outside of the helix.
Why does this stabilize the structure?
- Ionic interactions with the solvent
- Hydrogen bonding with itself
