Which of the following must happen first in order for DNA replication to occur?
DNA polymerase binds to the leading strand
DNA is unwound
Hydrogen bonds form between bases
chromosomes condense
Where do the Okazaki fragments form?
lagging strand
leading strand
base-pairs
5' end
Which of the following is required for DNA replication to occur?
DNA helicase
DNA ligase
DNA polymerase
all of these
What does nucleotide consist of?
a nitrogen base
a nitrogen base and a sugar
a nitrogen base, sugar, and phosphate
two nitrogen bases, a sugar, and a phosphate
The element that transformed the bacteria in Griffith's experiments was _________.
protein
capsules
DNA
heat
The Hershey-Chase research showed that,
bacteria could be transformed
DNA was the molecule of heredity
DNA was in the shape of a double helix
bases paired in a predictable way
The "rungs" of the DNA ladder are made of ______________.
phosphates and bases
sugars
sugars and phosphates
bases
Before the Hershey-Chase experiment, many scientists believed that ____ carried the hereditary information.
proteins
phages
helicase
the plasma membrane
To transform into a virulent form of bacteria, non-encapsulated bacteria must ________.
divide
be exposed to killed capsulated bacteria
be exposed to radioactive phosphorous
infect a host
A DNA strand has the following bases: A A G C C A. What are the bases on its complementary strand?
A A G C C A
A C C G A A
T T C G G T
C C A T T C
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