The genetic material responsible for tranformation.
DNA
100
Established base pairing rules to describe the specific pairings between bases on DNA strands.
Chargaff
100
The enyzme responsible for unwinding the DNA double helix
DNA polymerase
100
A substance that is introduced into the body to produce immunity.
Vaccine
100
Four forms of nucleotides each have a different type of...
nitrogen base
200
In 1944, demonstrated that treating bacteria with DNA destroying enzymes prevented harmless bacteria from transforming into deadly bacteria.
Avery
200
Developed photographs of the DNA molecule using X-ray diffraction.
Wilkins and Franklin
200
The combined efforts of approximately 100 replication forks make it possible to replicate an entire human chromosome in about...
8 hours
200
consists of a phosphate group, a sugar molecule, and a nitrogen base
nucleotide
200
enzymes that start DNA rplication by opening up the double helix by breaking the hydrogen bonds that link complementary bases
helicases
300
Used radioactive labeling to tag bacteriophage DNA with 32P and bacteriophage coat proteins with 35S.
Hershey and Chase
300
Credited with establishing the structure of DNA
Watson and Crick
300
At the end of the replication process, each of the two new DNA molecules is composed of
one new and one original strand
300
5- carbon sugar for which DNA is named
deoxyribose
300
portions of DNA where the double helix separates during DNA replication
replication forks
400
During transformation experiments, observed that harmless bacteria changed into virulent S bacteria.
Griffith
400
The nitrogen bases that are classified as purines.
Adenine and Guanine
400
The enzyme that adds complementary nucleotides to each DNA strand, forming two double helixes and that corrects errors made during the replication process
DNA polymerase
400
a class of organic molecules, each having a single ring of carbon and nitrogen atoms. Example: Thymine and Cytosine
pyrimidines
400
a long DNA molecule that had about 100 replication forks during replication
Eukaryotic DNA
500
Hershey and Chase concluded that the bacteriophages injected the DNA into the host bacterial cells but the __________ remained on the outside of the cell.
protein
500
In DNA, 2 complementary strands are held together by _________ between ______________.
hydrogen bonds, nitrogen bases
500
The shape, number of replication forks, and origin of replication forks in bacterial DNA.
circular, usually two, single origin
500
A virus that infects bacteria
bacteriophage
500
The process where DNA polymerases backtrack to remove incorrect nucleotides and replace them with correct ones