Structure Replication of DNA Flashcards
Semi conservative replication
Half old half new DNA strand
Parent strand
Old part of DNA strand in semi conservative replication
Daughter strand
New part of DNA strand in semi conservative replication
Helicase
Enzyme that unwinds DNA for replication
Ligase
Enzyme that links the new DNA together
Polymerase
Enzyme that brings correct nitrogen based for sticky ends in DNA replication
Okazaki fragment
Short chunks on DNA when replication is happening in a 3’-5’ direction
Replication fork
Point where DNA separates to allow replication
Double helix
Twisted ladder shape of dna
Lagging strand
DNA replication built in the slower direction that has to jump because it’s not a 5’-3’ direction
Leading strand
DNA replication of the faster strand
5-3’
Direction DNA is made in
Cell division
Division of identical cells for growth or repair
Mitosis
Cell division of regular animal cells (not sex cells)
Chromosomes
Supercoiled genetic information around protein balls
Cancer
Uncontrolled cell division disease
Metastasis
Cancer cells breaking off original tumour and travelling through the blood stream to set up tumours in new locations
Mutation
Changes in genetic information for improvement or disease.
Angiogenesis
Tumours “asking” for nutrients. New blood vessels set up to feed the tumour
DNA fingerprinting
Using differences in DNA left behind to cross match to figure out who the stray DNA belonged to
