DNA Replication
DNA replication produces how many DNA molecules
Two
Enzyme that unwinds DNA
Helicase
Strand synthesized continuously
Leading strand
Scientist linked to base-pair rule
Chargaff
Telomeres protect this part of chromosomes
Ends
DNA replication occurs during this phase
S phase
Enzyme that adds DNA nucleotides
DNA polymerase
Strand synthesized in fragments
Lagging strand
Scientist who used X-ray crystallography
Rosalind Franklin
Okazaki fragments occur on this strand
Lagging
Replication model where one strand is old
Semi-conservative
Enzyme that adds RNA primers
Primase
Fragments formed on lagging strand
Okazaki fragments
Scientists who built DNA model
Watson and Crick
Direction DNA polymerase works
5′ to 3′
Meaning of semi-conservative replication
One old strand and one new strand
Enzyme that seals Okazaki fragments
Ligase
Why fragments are necessary
DNA can only be built 5′ to 3′
Franklin’s famous image
Image 51
True or False: Okazaki fragments are on leading strand
False
Replication occurs on these two strands
Leading and lagging
Enzyme that protects chromosome ends
Telomerase
Enzyme that joins fragments
Ligase
Journal where DNA structure was published
Nature
Telomere research may help humans do this
Slow aging