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DNA Replication
Test Description: DNA Replication
Instructions: Answer all questions to get your test result.
1) A DNA Nucleotide is comprised of 3 parts. What are they?
A
chromosomes, lipids, proteins
B
ATGC
C
sugar, phosphate, hydrogen base
D
sugar, phosphate, nitrogenous base
2) Which nitrogenous bases pair with each other?
A
A-U, G-G
B
A-T, C-A
C
A-G, C-T
D
A-T, G-C
3) During ___________ replication, parental (original) strands of DNA separate, serve as templates, and produce DNA molecules that have one strand of parental DNA and one strand of new DNA.
A
double helix
B
non-conservative
C
conservative
D
semiconservative
4) YOU CAN ONLY ADD NEW NUCLEOTIDES TO THE ______ END OF A STRAND.
A
4'
B
3'
C
2'
D
5'
5) What enzyme unzips the DNA double helix, thus beginning replication?
A
DNA Polymerase
B
Helicase
C
Exonuclease
D
Primase
6) Primase is an enzyme that
A
unzips the DNA double helix
B
adds RNA primer to the 3' end of the DNA template strand
C
creates a replication fork
D
adds DNA primer to the 5' end of the DNA template strand
7) Which enzyme matches up the base pairs?
A
Primase
B
RNA polymerase
C
Helicase
D
DNA Polymerase
8) On the lagging strand, DNA Polymerase adds new nucleotides in fragments called _______ fragments
A
Taikwando
B
Okazaki
C
Nagasaki
D
Hiroshima
9) DNA Ligase...
A
removes RNA primers
B
Creates a chromosome
C
Unzips DNA
D
glues or seals Okazaki fragments together
10) Exonuclease is an enzyme that
A
removes RNA primers
B
unzips a DNA double helix
C
None of the options
D
glues or seals Okazaki fragments
*select an answer for all questions
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