WorksheetsDNA Structure and Replication
Total questions: 25
Worksheet time: 15mins
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.
What is the complementary DNA strand to the following strand; AACGT?
a)
CCTAC
b)
GGTAC
c)
TTGCA
d)
TTCGA
6.
During which stage of the cell cycle is DNA replicated?
a)
Metaphase
b)
Interphase
c)
G2
d)
Anaphase
7.
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
8.
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
9.
What is the name of the sugar found in DNA?
a)
Deoxyribose
b)
Oxyclean
c)
Glucose
d)
Ribose
10.
Which enzyme proofreads the new DNA strand during replication?
a)
DNA Polymerase
b)
DNA Helicase
c)
DNA Ligase
d)
DNA Primase
11.
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
12.
The two strands of DNA are held together by:
a)
Hydrogen Bonds
b)
Phosphodiester Bonds
c)
Glycolsyl Bonds
d)
Glycosidic Linkages
13.
The 5' end of DNA is marked by a(n)
a)
Phosphate Group
b)
Hydroxyl Group
c)
Purine
d)
Pyrimidine
14.
The concept that DNA is made of two strands running in opposite directions is called:
a)
Antiparallel
b)
Isomerism
c)
Enantiomerism
d)
S/R Chirality
15.
The "Double Helix Model" of DNA was proposed by:
a)
Watson & Crick
b)
Meselson & Stahl
c)
Beadle & Tatum
d)
Gosling & Watkins
16.
X-Ray diffraction pictures of DNA that suggested a helical shape were taken by:
a)
Watson & Crick
b)
Meselson & Stahl
c)
Beadle & Tatum
d)
Gosling & Franklin
17.
The new DNA made from the lagging strand is synthesized in the _________ direction
a)
5' to 3'
b)
3' to 5'
18.
Small segments of DNA made on the lagging strand are called:
a)
Okazaki Fragments
b)
ERVs
c)
Transposable Elements
d)
Telomeres
19.
What is the complement to the DNA strand below:
5'-ATGCCAT-3'
5'-ATGCCAT-3'
a)
5'-TACGGTA-3'
b)
3'-TACGGTA-5'
c)
3'-ATGGCAT-5'
d)
5'-ATGGCAT-3'
20.
The enzyme that joins together small segments of newly replicated DNA is:
a)
DNA Polymerase III
b)
DNA Polymerase I
c)
DNA Polymerase II
d)
DNA Ligase
21.
In what phase of the cell cycle does DNA replication take place?
a)
G1
b)
S
c)
G2
d)
M
22.
Okazaki fragments form on the:
a)
lagging strand
b)
leading strand
c)
base-pairs
d)
5' end
23.
Structure C is
a)
helicase
b)
primase
c)
DNA polymerase III
d)
gyrase
24.
H is the
a)
leading strand
b)
lagging strand
c)
parent strand
d)
none of these
25.
Rick Astley's never gonna:
a)
Give you up!
b)
Let You Down!
c)
Make You Cry!
d)
Hurt You
100 %
