WorksheetsDNA Structure & Replication
Total questions: 22
Worksheet time: 12mins
Name
Class
Date
1.
The 5' end of DNA is marked by a(n)
a)
Phosphate Group
b)
Hydroxyl Group
c)
Purine
d)
Pyrimidine
2.
The two strands of DNA are held together by:
a)
Hydrogen Bonds
b)
Phosphodiester Bonds
c)
Glycolsyl Bonds
d)
Glycosidic Linkages
3.
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
4.
DNA is a polymer made of:
a)
Nucleotides
b)
Ribosomes
c)
Purines
d)
Pyrimidines
5.
The "Triple Helix Model" of DNA was proposed by:
a)
Linus Van Pelt
b)
Linus Pauling
c)
Rosalind Franklin
d)
Nikolai Koltsov
6.
The "Double Helix Model" of DNA was proposed by:
a)
Watson & Crick
b)
Meselson & Stahl
c)
Beadle & Tatum
d)
Gosling & Watkins
7.
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
8.
The person who discovered the material in the nucleus, called NUCLEIN, was:
a)
Meischer
b)
Koltsov
c)
Levene
d)
Chargaff
9.
The experiment that proved that DNA was the molecule of heredity was performed by:
a)
Hershey & Chase
b)
Watson & Crick
c)
Meselson & Stahl
d)
Okazaki
10.
Who's work concluded that the %A=%T and %G=%C
a)
Chargaff
b)
Meischer
c)
Levene
d)
Hammerling
11.
In the Hershey-Chase experiment DNA was tagged using isotopes of:
a)
Sulfur
b)
Nitrogen
c)
Carbon
d)
Phosphorus
12.
DNA found at the end of each chromosome is called a:
a)
Telomere
b)
Centromere
c)
Kinetochore
d)
Histone
13.
Bits of DNA that 'jump' around the genome are called:
a)
Transposons
b)
ERVs
c)
Pseudogenes
d)
Telomeres
14.
The new DNA made from the lagging strand is synthesized in the _________ direction
a)
5' to 3'
b)
3' to 5'
15.
The new DNA on the leading strand is synthesized in the _________ direction
a)
5' to 3'
b)
3' to 5'
16.
DNA replication was proved by the experiments of:
a)
Hershey & Chase
b)
Meselson & Stahl
c)
Watson & Crick
d)
Franklin & Gosling
17.
Small segments of DNA made on the lagging strand are called:
a)
Okazaki Fragments
b)
ERVs
c)
Transposable Elements
d)
Telomeres
18.
The term used to describe DNA Replication is:
a)
Semi-Conservative
b)
Conservative
c)
AntiParallel
d)
Dispersive
19.
DNA Replication begins at:
a)
Start Codons
b)
Origins
c)
Promoters
d)
Histones
20.
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'
21.
The enzyme that removes RNA Primers and fills in the gaps with DNA Nucleotides is
a)
DNA Polymerase III
b)
DNA Polymerase I
c)
DNA Polymerase II
d)
Primase
22.
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
100 %
