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WorksheetsDNA Concepts Quiz
Total questions: 27
Worksheet time: 14mins
What does "5’ (Five Prime)" refer to?
A nitrogenous base
The end of a DNA strand with a phosphate group
The end of a DNA strand with a sugar group
An enzyme that unwinds DNA
What does "3’ (Three Prime)" refer to?
The end of a DNA strand with a hydroxyl group
A purine base
A phosphate group
An enzyme that synthesizes DNA
Which base pairs with Thymine in DNA?
Guanine
Uracil
Adenine
Cytosine
What is "Base Pairing"?
The process of DNA replication
Hydrogen bonding between specific bases
The cutting of DNA
Making proteins from RNA
Cytosine pairs with which base?
Thymine
Guanine
Adenine
Uracil
What does DNA stand for?
Deoxyribonucleic Acid
Double Nitrogenous Acid
Deoxyribose Nucleic Adenine
Deoxyribonucleic Agent
What does DNA Helicase do?
Binds Okazaki fragments
Unwinds the DNA double helix
Synthesizes RNA
Adds nucleotides
What is the role of DNA Ligase?
Unzips the DNA strand
Seals gaps between Okazaki fragments
Builds the leading strand
Proofreads DNA
What does DNA Polymerase do?
Unwinds DNA
Builds new DNA strands
Cuts DNA into fragments
Adds RNA primers
What is the purpose of Gel Electrophoresis?
Unwinding DNA
Separating DNA fragments by size
Binding Okazaki fragments
Synthesizing RNA
What does the Genetic Code determine?
Shape of the DNA
Sequence of amino acids in proteins
Type of sugar in DNA
Number of DNA strands
What is Genetic Engineering?
Unwinding DNA
Editing DNA to modify organisms
Synthesizing RNA from DNA
Repairing mutations naturally
Guanine pairs with which base?
Cytosine
Adenine
Thymine
Uracil
What is the Lagging Strand?
DNA strand synthesized continuously
DNA strand synthesized in fragments
Single-stranded RNA
Area where DNA is cut
What is the Leading Strand?
DNA strand made in fragments
DNA strand synthesized continuously
Single-stranded RNA
Protein that binds DNA
What is a Nitrogenous Base?
Component of nucleotides that contains nitrogen
A type of sugar in DNA
A type of enzyme
Phosphate group
What is a Nucleotide made of?
Sugar, phosphate, and a nitrogenous base
Sugar and nitrogen only
Phosphate and sugar only
Base and phosphate only
What are Okazaki Fragments?
Pieces of RNA
Small DNA fragments on the lagging strand
Single strands of DNA
Large pieces of chromosomes
What is the Phosphate Group’s role in DNA?
It holds base pairs together
It forms the backbone of DNA
It codes for proteins
It unzips the DNA
What does Primase do?
Unwinds the DNA
Adds RNA primers to start replication
Links Okazaki fragments
Adds nucleotides
Which type of base is a Purine?
Single-ringed structure
Double-ringed structure
Phosphate molecule
Sugar molecule
Which type of base is a Pyrimidine?
Double-ringed structure
Single-ringed structure
Phosphate group
Sugar group
What is Replication?
Making RNA from DNA
Making a copy of DNA
Making protein from RNA
Breaking down DNA
What do Single-Stranded Binding Proteins (SSBPs) do?
Help DNA unwind
Prevent DNA strands from rejoining
Create Okazaki fragments
Add nucleotides
What base is only found in DNA and not RNA?
Uracil
Adenine
Thymine
Cytosine
What is the role of Topoisomerase?
Adds RNA primers
Relieves strain ahead of replication forks
Seals gaps in DNA
Forms Okazaki fragments
Which nitrogenous base is found in RNA but not DNA?
Thymine
Uracil
Adenine
Cytosine
