WGU Biochemistry Exam 2025 Questions and
Answers 100% Pass
DNA is a type of _____________ - ✔✔nucleic acid
__________ are found in virtually all cells - ✔✔Nucleic acids
What is the function of nucleic acids? - ✔✔To encode heritable information and pass it on from
generation to generation
What three things make up nucleotides? - ✔✔Phosphate, pentose sugar, and pyrimidine or purine base
What are the four bases in DNA? - ✔✔Adenine, guanine, cytosine, and thymine
What are the four bases in RNA? - ✔✔Adenine, guanine, cytosine, and uracil
How many strands does RNA have? DNA? - ✔✔RNA is a single strand, DNA is double
Which base pairs with Adenine? - ✔✔Thymine
Which base pairs with Guanine? - ✔✔Cytosine
Where is DNA located? - ✔✔In the Nucleus
What encases the DNA? - ✔✔Chromosomes
How many chromosomes do humans have? - ✔✔46. 23 pairs
Gene - ✔✔Small segment of DNA that contains all the pairs of chromosomes
When was the double helix discovered? - ✔✔1953
Who began the Human Genome project? - ✔✔Francis S Collins
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, Hereditary information is stored in ______ - ✔✔DNA
The individual building blocks of DNA are called - ✔✔Nucleotides
A DNA molecule consists of two nucleotide strands twisted into a - ✔✔double helix
The ___________ of the DNA stands pair in a consistent fashion. - ✔✔Bases
What is the RNA transcription for the DNA strand 5- GCT ATG CAT CGT - 3 - ✔✔5 - ACG AUG CAU
AGC - 3
Which template DNA sequence would the short transcript 5- AUC CGU ACG -3 be derived from? - ✔✔5-
CGT ACG GAT -3
What is the complementary sequence for the following DNA sequence? 5- GCC ATC TCG AAT -3 - ✔✔5-
ATT CGA GAT GGC -3
Assuming 100% reaction efficiency, how many DNA copies are created after the completion of four
complete PCR cycles? - ✔✔16
What is the function of DNA polymerase in the process of PCR? - ✔✔It recognizes the primers and uses
the available dNTPs to replicate the template DNA sequence
What type of mutation occurs when cytosine is completely mutated to guanin in the DNA sequence? -
✔✔Nonsense
When using heat to denature a protein, which force is the first to be disrupted as temperature increases? -
✔✔Hydrophobic interactions
Which term describes the order of amino acids in a peptide chain? - ✔✔Primary structure
A commonly used technique for protein denaturation is adding an acid or a base to dramatically change
the pH.
Page 2/12
Crafted for Academic Insight by KatelynWhitman. All rights reserved © 2025
Answers 100% Pass
DNA is a type of _____________ - ✔✔nucleic acid
__________ are found in virtually all cells - ✔✔Nucleic acids
What is the function of nucleic acids? - ✔✔To encode heritable information and pass it on from
generation to generation
What three things make up nucleotides? - ✔✔Phosphate, pentose sugar, and pyrimidine or purine base
What are the four bases in DNA? - ✔✔Adenine, guanine, cytosine, and thymine
What are the four bases in RNA? - ✔✔Adenine, guanine, cytosine, and uracil
How many strands does RNA have? DNA? - ✔✔RNA is a single strand, DNA is double
Which base pairs with Adenine? - ✔✔Thymine
Which base pairs with Guanine? - ✔✔Cytosine
Where is DNA located? - ✔✔In the Nucleus
What encases the DNA? - ✔✔Chromosomes
How many chromosomes do humans have? - ✔✔46. 23 pairs
Gene - ✔✔Small segment of DNA that contains all the pairs of chromosomes
When was the double helix discovered? - ✔✔1953
Who began the Human Genome project? - ✔✔Francis S Collins
Page 1/12
Crafted for Academic Insight by KatelynWhitman. All rights reserved © 2025
, Hereditary information is stored in ______ - ✔✔DNA
The individual building blocks of DNA are called - ✔✔Nucleotides
A DNA molecule consists of two nucleotide strands twisted into a - ✔✔double helix
The ___________ of the DNA stands pair in a consistent fashion. - ✔✔Bases
What is the RNA transcription for the DNA strand 5- GCT ATG CAT CGT - 3 - ✔✔5 - ACG AUG CAU
AGC - 3
Which template DNA sequence would the short transcript 5- AUC CGU ACG -3 be derived from? - ✔✔5-
CGT ACG GAT -3
What is the complementary sequence for the following DNA sequence? 5- GCC ATC TCG AAT -3 - ✔✔5-
ATT CGA GAT GGC -3
Assuming 100% reaction efficiency, how many DNA copies are created after the completion of four
complete PCR cycles? - ✔✔16
What is the function of DNA polymerase in the process of PCR? - ✔✔It recognizes the primers and uses
the available dNTPs to replicate the template DNA sequence
What type of mutation occurs when cytosine is completely mutated to guanin in the DNA sequence? -
✔✔Nonsense
When using heat to denature a protein, which force is the first to be disrupted as temperature increases? -
✔✔Hydrophobic interactions
Which term describes the order of amino acids in a peptide chain? - ✔✔Primary structure
A commonly used technique for protein denaturation is adding an acid or a base to dramatically change
the pH.
Page 2/12
Crafted for Academic Insight by KatelynWhitman. All rights reserved © 2025
