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WorksheetsDNA Structure Replication Review
Total questions: 23
Worksheet time: 15mins
Like RNA, DNA is a type of:
Carbohydrate
Lipid
Protein
Nucleic Acid
The subunit of nucleic acids like DNA and RNA are called:
Monosaccharides
Sugars
Amino acids
Nucleotides
The subunits of nucleic acids, such as DNA, are nucleotides. What are the 3 parts of a nucleotide?
Phosphate group
Sugar group
Hydrogen group
Nitrogenous Base
What does DNA stand for?
Double-helix Nucleic Acid
Deoxyribonucleic Acid
Dehydrogenic Acid
Denitrogenous Acid
What type of sugar group does DNA have?
Ribose
Glucose
Deoxyribose
Lactose
DNA has nitrogenous bases that come in pairs. What is this called?
Complementary Base Pairing
Convergent Pairing
Nondisjunction
DNA Replication
How many possible bases are found in DNA?
1
2
3
4
Select the 2 correct DNA base pairs.
Adenine and Thymine
Adenine and Cytosine
Cytosine and Guanine
Cytosine and Thymine
DNA is said to be in the shape of a:
Single helix
Double helix
Plasmid
Complementary base pairs
Which 2 parts of a nucleotide form the sides or "backbone" of the DNA ladder?
Nitrogenous Base
Phosphate group
Deoxyribose sugar
Ribose sugar
The nitrogenous bases of DNA nucleotides form the middle "rungs" of the DNA ladder. What type of bond holds these bases together?
Strong covalent bonds
Peptide bonds
Weak hydrogen bonds
Strong phosphorous bonds
Every set of 3 bases or letters in DNA and RNA are called a:
Codon
Triplet
Chart
Amino acid
Select the correct complementary DNA strand for the following sequence: TAC-GCT
ATG-CGA
AUG-CGA
TAC-GCT
GTC-ATC
A segment of DNA is called a:
Allele
Gene
Codon
Trait
What aspect of DNA determines the proteins that are produced?
The arrangement of nitrogenous bases
The double helix shape
The alternating sugar-phosphate backbone
The complementary nature
What process is shown in this image?
Transcription
Translation
DNA Replication
Independent Assortment
Where in the cell does DNA replication occur?
RIbosomes
Cell membrane
Nucleus
Nucleolus
Why do cells replicate their DNA?
To express genes
To code for proteins
To make more DNA for new cells
To repair damaged DNA
When do cells replicate their DNA?
During the S phase of Interphase before cell division
During cytokinesis following cell division
During cell division or mitosis
During the G1 phase of Interphase before cell division
During DNA replication, the DNA is first unzipped by an enzyme called:
Lactose
Helicase
DNA Polymerase
Catalase
During DNA replication, an enzyme called ________ is responsible for attaching new nitrogenous bases to each unzipped strand of the DNA.
Helicase
Lactose
Catalase
DNA Polymerase
In DNA replication, the DNA is first unzipped and then new nitrogenous bases are added to each of the original strands. This is called a _______ because half of the original DNA is preserved in each new strand.
Semi-conservative process
Dispersive process
Conservative process
DNA is found in what cell structure?
Rough Endoplasmic Reticulum
Ribosomes
Nucleus
Nucleolus
