WorksheetsDNA Structure and Replication
Total questions: 21
Worksheet time: 12mins
Name
Class
Date
1.
What does DNA stand for?
a)
Deoxyribonacent Acid
b)
Dextroribonucleic Acid
c)
Deoxyribonucleic Acid
d)
Dinitrogen Acid
2.
Which of the following is NOT a nitrogenous base found in DNA?
a)
Adenine
b)
Glycine
c)
Thymine
d)
Cytosine
3.
What is the shape of DNA?
a)
Single helix
b)
Double helix
c)
Triple helix
d)
Double spiral
4.
What base does thymine match with?
a)
Guanine
b)
Adipose
c)
Adenine
d)
Cytosine
5.
Which of the following is NOT a part of the DNA nucleotide?
a)
Dextrose sugar
b)
Phosphate group
c)
Nitrogenous base
d)
Lysine amino acid
6.
Where is DNA located within the cell?
a)
Cytoplasm
b)
Nucleus
c)
Lysosome
d)
Mitochondria
7.
What base does Guanine match up with?
a)
Cytosine
b)
Adenine
c)
Thymine
d)
Glycine
8.
What is the complementary DNA strand to the following strand; AACGT?
a)
CCTAC
b)
GGTAC
c)
TTGCA
d)
TTCGA
9.
During which stage of the cell cycle is DNA replicated?
a)
Metaphase
b)
Interphase
c)
G2
d)
Anaphase
10.
Where does DNA get replicated inside the cell?
a)
Cytoplasm
b)
Mitochondria
c)
Nucleus
d)
Cell membrane
11.
What is the correct order of steps for DNA replication?
a)
Unwind, unzip, bring in new nucleotides, wind back up
b)
Unzip, unwind, bring in new nucleotides, wind back up
c)
Wind back up, unzip, unwind, bring in new nucleotides
d)
Bring in new nucleotides, unwind, unzip, wind back up
12.
What does the DNA helicase do during replication?
a)
It builds the new DNA strand
b)
Glues the Okazaki fragments together
c)
Unwinds and unzips the DNA
d)
Sets the RNA primer for DNA polymerase
13.
What does DNA polymerase do during replication?
a)
It builds the new DNA strand
b)
Unwinds and unzips the DNA
c)
Glues the Okazaki fragments together
d)
Sets the RNA primer for DNA helicase
14.
What is the goal of DNA replication? (choose the most accurate answer)
a)
To destroy the DNA molecule
b)
To make a new copy of DNA from an existing strand of DNA
c)
To make a totally new DNA molecule from nothing
d)
To copy the DNA into RNA
15.
What is the complementary DNA strand to the following strand; ACT?
a)
TGA
b)
GTC
c)
ATC
d)
CAG
16.
What are sections of DNA that hold instructions on how to build proteins called?
a)
Chromosomes
b)
Centromere
c)
Nucleus
d)
Gene
17.
What is the name of the sugar found in DNA?
a)
Deoxyribose
b)
Oxyclean
c)
Glucose
d)
Ribose
18.
What do we call a protein that helps biological processes happen?
a)
Sugars
b)
Carbohydrates
c)
Enzymes
d)
Nucleic Acids
19.
Which enzyme proofreads the new DNA strand during replication?
a)
DNA Polymerase
b)
DNA Helicase
c)
DNA Ligase
d)
DNA Primase
20.
What does it mean to say DNA replication is "semi-conservative?"
a)
A new strand is built from an original strand
b)
A new strand is built from nothing
21.
Why is it important that when DNA is copied, it makes an exact copy?
a)
If not, then there will be different instructions passed on to the new cell
b)
It's not important
c)
It's not important because the cell will just figure it out
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