Pathophysiology- Module 3 Exam Questions and Correct Answers Latest Update (2025-2026) Rated A+
DNA contains:
a. the enzymes necessary for cell division.
b. the genetic code for all parts of the body.
c. a genetic blueprint for making proteins only.
d. proteins for structural elements in the cell. - Answers b. the genetic code for all parts of the body.
The genetic code for all structural elements in the body is contained in the DNA.
Adenine, cytosine, guanine, and thymine are:
a. phosphate groups
b. amino acids
c. the four helical strands of DNA
d. nitrogen bases - Answers d. nitrogen bases
Adenine, cytosine, guanine, and thymine are nitrogenous bases. The nitrogenous bases make up the
"rungs" of the ladder of DNA. Each rung is made up of a pair of bases that are bound together by a weak
hydrogen bond.
The triplet of base pairs necessary to code for a specific amino acid is called a:
a. protein
b. nucleotide
c. codon
d. chromosome. - Answers c. codon
The base components of RNA are:
a. A, G, C, and U
b. U, G, C, and T
c. A, G, C, and T
, D. X and Y - Answers a. A, G, C, and U
The base components of RNA are A (adenine), G (guanine), C (cytosine), and U (uracil).
In the DNA helix, guanine pairs with: - Answers Cytosine
Transcription - Answers The process by which RNA is formed from DNA for protein synthesis
Translation - Answers process by which mRNA interacts with tRNA in the ribosome.
Mitosis - Answers process of DNA replication and cell division
Meiosis - Answers when cell division occurs without replication of DNA contents.
Prior to translation, which of the following steps must occur
a. Anticodon on tRNA matches its codon on mRNA
b. Peptide binding of amino acid sequences
c. DNA unzipping and complementary base pairing
d. Ribosome reading of the termination sequence on mRNA - Answers c. DNA unzipping and
complementary base pairing
Prior to translation, DNA unzips to allow for complementary base pairing and formation of mRNA.
Mutations can result in abnormal:
a. DNA
b. RNA
c. proteins
d. all of the above - Answers d. all of the above
Which of the following statements about mutations is correct?
a. Mutations always lead to genetic disease.
b. Spontaneous mutations occur as a result of exposure to a mutagen.
c. Mutations are alterations in normal DNA sequence.
d. Mutations are always inherited - Answers c. Mutations are alterations in normal DNA sequence.
DNA contains:
a. the enzymes necessary for cell division.
b. the genetic code for all parts of the body.
c. a genetic blueprint for making proteins only.
d. proteins for structural elements in the cell. - Answers b. the genetic code for all parts of the body.
The genetic code for all structural elements in the body is contained in the DNA.
Adenine, cytosine, guanine, and thymine are:
a. phosphate groups
b. amino acids
c. the four helical strands of DNA
d. nitrogen bases - Answers d. nitrogen bases
Adenine, cytosine, guanine, and thymine are nitrogenous bases. The nitrogenous bases make up the
"rungs" of the ladder of DNA. Each rung is made up of a pair of bases that are bound together by a weak
hydrogen bond.
The triplet of base pairs necessary to code for a specific amino acid is called a:
a. protein
b. nucleotide
c. codon
d. chromosome. - Answers c. codon
The base components of RNA are:
a. A, G, C, and U
b. U, G, C, and T
c. A, G, C, and T
, D. X and Y - Answers a. A, G, C, and U
The base components of RNA are A (adenine), G (guanine), C (cytosine), and U (uracil).
In the DNA helix, guanine pairs with: - Answers Cytosine
Transcription - Answers The process by which RNA is formed from DNA for protein synthesis
Translation - Answers process by which mRNA interacts with tRNA in the ribosome.
Mitosis - Answers process of DNA replication and cell division
Meiosis - Answers when cell division occurs without replication of DNA contents.
Prior to translation, which of the following steps must occur
a. Anticodon on tRNA matches its codon on mRNA
b. Peptide binding of amino acid sequences
c. DNA unzipping and complementary base pairing
d. Ribosome reading of the termination sequence on mRNA - Answers c. DNA unzipping and
complementary base pairing
Prior to translation, DNA unzips to allow for complementary base pairing and formation of mRNA.
Mutations can result in abnormal:
a. DNA
b. RNA
c. proteins
d. all of the above - Answers d. all of the above
Which of the following statements about mutations is correct?
a. Mutations always lead to genetic disease.
b. Spontaneous mutations occur as a result of exposure to a mutagen.
c. Mutations are alterations in normal DNA sequence.
d. Mutations are always inherited - Answers c. Mutations are alterations in normal DNA sequence.
