Exercise: Dna Structure And Replication

Questions for: Dna Structure And Replication

What is the exact name of the classical Watson-Crick double helix DNA?
A:
A-DNA
B:
B-DNA
C:
Z-DNA
D:
X-DNA
Answer: B
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During conventional transformation experiments E. coli cells and plasmid DNA interacts in an environment of
A:
high temperature and Ca++
B:
low temperature and Ca++
C:
high temperature and Mg++
D:
low temperature and Mg++
Answer: B
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The DNA is negatively super coiled, complexes to histone,
A:
HU
B:
HSP-1
C:
H-NS
D:
All of these
Answer: D
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What is the name given to the points at which a DNA helix is unwound and new strands develop?
A:
Replication origins
B:
Replication forks
C:
Leading strands
D:
Okazaki fragments
Answer: B
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In DNA, nucleotides are covalently joined together by
A:
3', 5' phosphodiester bonds to form a repetitive sugar-phosphate chain
B:
2', 5' phosphodiester bonds to form a repetitive sugar-phosphate chain
C:
2', 3' phosphodiester bonds to form a repetitive sugar-phosphate chain
D:
3', 4' phosphodiester bonds to form a repetitive sugar-phosphate chain
Answer: A
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